build(deps): update dependencies (#10740 )

Signed-off-by: Jakob Borg <jakob@kastelo.net>
fix(protocol): be more stringent about blocks in non-file entries (#10737 )
2026-06-12 08:59:50 +02:00 · 2026-06-11 18:52:24 +02:00 · 2026-06-11 18:51:25 +02:00 · 2026-06-11 18:50:11 +02:00 · 2026-06-08 05:17:05 +00:00 · 2026-06-04 18:28:19 +00:00
75 changed files with 779 additions and 419 deletions
@@ -22,6 +22,7 @@ jobs:
    if: github.repository_owner == 'syncthing'
    runs-on: ubuntu-latest
    strategy:
+      fail-fast: false
      matrix:
        pkg:
          - stcrashreceiver
@@ -164,7 +164,7 @@ jobs:
    needs:
      - build-test
      - package-linux
-      # - package-illumos
+      - package-illumos
      - package-cross
      - package-source
      - package-debian
@@ -646,7 +646,7 @@ jobs:
    needs:
      - codesign-windows
      - package-linux
-      # - package-illumos
+      - package-illumos
      - package-macos
      - package-cross
      - package-source
@@ -116,6 +116,7 @@ Dmitry Saveliev (dsaveliev) <d.e.saveliev@gmail.com>
 domain <32405309+szu17dmy@users.noreply.github.com>
 Domenic Horner <domenic@tgxn.net>
 Dominik Heidler (asdil12) <dominik@heidler.eu>
+Elias <1elias.bauer@gmail.com>
 Elias Jarlebring (jarlebring) <jarlebring@gmail.com>
 Elliot Huffman <thelich2@gmail.com>
 Emil Hessman (ceh) <emil@hessman.se>
@@ -216,6 +217,7 @@ Matic Potočnik <hairyfotr@gmail.com>
 Matt Burke (burkemw3) <mburke@amplify.com> <burkemw3@gmail.com>
 Matt Robenolt <matt@ydekproductions.com>
 Matteo Ruina <matteo.ruina@gmail.com>
+mattn <mattn.jp@gmail.com>
 Maurizio Tomasi <ziotom78@gmail.com>
 Max <github@germancoding.com>
 Max Schulze (kralo) <max.schulze@online.de> <kralo@users.noreply.github.com>
@@ -286,6 +288,7 @@ Sergey Mishin (ralder) <ralder@yandex.ru>
 Sertonix <83883937+Sertonix@users.noreply.github.com>
 Severin von Wnuck-Lipinski <ss7@live.de>
 Shaarad Dalvi <60266155+shaaraddalvi@users.noreply.github.com> <shdalv@microsoft.com>
+Shablone <20610621+Shablone@users.noreply.github.com>
 Shivam Kumar <155747305+maishivamhoo123@users.noreply.github.com>
 Simon Mwepu <simonmwepu@gmail.com>
 Simon Pickup <simon@pickupinfinity.com>
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <application>
+    <windowsSettings>
+      <consoleAllocationPolicy xmlns="http://schemas.microsoft.com/SMI/2024/WindowsSettings">detached</consoleAllocationPolicy>
+    </windowsSettings>
+  </application>
+</assembly>
@@ -718,7 +718,7 @@ func shouldBuildSyso(dir string) (string, error) {
 	}

 	jsonPath := filepath.Join(dir, "versioninfo.json")
-	err = os.WriteFile(jsonPath, bs, 0o644)
+	err = os.WriteFile(jsonPath, bs, 0o666)
 	if err != nil {
 		return "", errors.New("failed to create " + jsonPath + ": " + err.Error())
 	}
@@ -732,9 +732,18 @@ func shouldBuildSyso(dir string) (string, error) {
 	sysoPath := filepath.Join(dir, "cmd", "syncthing", "resource.syso")

 	// See https://github.com/josephspurrier/goversioninfo#command-line-flags
-	arm := strings.HasPrefix(goarch, "arm")
-	a64 := strings.Contains(goarch, "64")
-	if _, err := runError("goversioninfo", "-o", sysoPath, fmt.Sprintf("-arm=%v", arm), fmt.Sprintf("-64=%v", a64)); err != nil {
+	// For manifest see https://learn.microsoft.com/en-us/windows/console/console-allocation-policy
+	isARM := strings.HasPrefix(goarch, "arm")
+	is64Bit := strings.Contains(goarch, "64")
+
+	args := []string{
+		"-manifest=assets/windows/syncthing.exe.manifest", // console-allocation-policy
+		"-o", sysoPath, // output path
+		fmt.Sprintf("-arm=%v", isARM),
+		fmt.Sprintf("-64=%v", is64Bit),
+	}
+
+	if _, err := runError("goversioninfo", args...); err != nil {
 		return "", errors.New("failed to create " + sysoPath + ": " + err.Error())
 	}

@@ -774,7 +783,7 @@ func copyFile(src, dst string, perm os.FileMode) error {
 	}

 copy:
-	os.MkdirAll(filepath.Dir(dst), 0o777)
+	os.MkdirAll(filepath.Dir(dst), os.ModePerm)
 	if err := os.WriteFile(dst, in, perm); err != nil {
 		return err
 	}
@@ -1423,7 +1432,7 @@ func writeCompatJSON() {
 			continue
 		}
 		bs, _ := json.MarshalIndent(e, "", "  ")
-		if err := os.WriteFile("compat.json", bs, 0o644); err != nil {
+		if err := os.WriteFile("compat.json", bs, 0o666); err != nil {
 			log.Fatal("Writing compat.json:", err)
 		}
 		return
@@ -0,0 +1,76 @@
+2026-05-21 10:03:01 INF syncthing v2.1.1-dev.9.gb3b7d228.dirty-morecrashrep "Hafnium Hornet" (go1.26.3 darwin-arm64) jb@jbo-m3wl72rv 2026-05-21 07:58:11 UTC [stnoupgrade] (log.pkg=main)
+2026-05-21 10:03:01 INF No automatic upgrades; STNOUPGRADE environment variable defined (log.pkg=main)
+2026-05-21 10:03:01 INF Calculated our device ID (device=I6KAH76-66SLLLB-5PFXSOA-UFJCDZC-YAOMLEK-CP2GB32-BV5RQST-3PSROAU log.pkg=syncthing)
+2026-05-21 10:03:01 INF Overall rate limit in use (send="is unlimited" recv="is unlimited" log.pkg=connections)
+2026-05-21 10:03:01 INF Using discovery mechanism (identity="IPv4 local broadcast discovery on port 21027" log.pkg=discover)
+2026-05-21 10:03:01 INF Using discovery mechanism (identity="IPv6 local multicast discovery on address [ff12::8384]:21027" log.pkg=discover)
+2026-05-21 10:03:01 INF TCP listener starting (address=127.0.0.1:22001 log.pkg=connections)
+2026-05-21 10:03:01 INF Ready to synchronize (folder.id=default folder.type=sendreceive log.pkg=model)
+2026-05-21 10:03:01 INF QUIC listener starting (address=127.0.0.1:22001 log.pkg=connections)
+2026-05-21 10:03:01 INF GUI and API listening (address=127.0.0.1:8081 log.pkg=api)
+...
+2026-05-21 10:03:01 INF Access the GUI via the following URL: http://127.0.0.1:8081/ (log.pkg=api)
+2026-05-21 10:03:01 INF Loaded configuration (name=s1 log.pkg=syncthing)
+2026-05-21 10:03:01 INF Loaded peer device configuration (device=MRIW7OK name=s2 address="[tcp://127.0.0.1:22002 quic://127.0.0.1:22002]" log.pkg=syncthing)
+2026-05-21 10:03:01 INF Completed initial scan (folder.id=default folder.type=sendreceive log.pkg=model)
+0xee9de1fe260
+2026-05-21 10:03:02 INF Measured hashing performance (perf="2789.71 MB/s" log.pkg=syncthing)
+Panic at 2026-05-21T10:03:02+02:00
+runtime: marked free object in span 0x108b34d20, elemsize=8 freeindex=34 (bad use of unsafe.Pointer or having race conditions? try -d=checkptr or -race)
+0xee9de1fe000 alloc marked
+0xee9de1fe008 alloc marked
+...
+0xee9de1fe250 free  unmarked
+0xee9de1fe258 free  unmarked
+0xee9de1fe260 free  marked   zombie
+                   7 6 5 4  3 2 1 0   f e d c  b a 9 8  0123456789abcdef
+00000ee9de1fe260: 00000000 00000000                     ........
+0xee9de1fe268 free  unmarked
+0xee9de1fe270 free  unmarked
+...
+0xee9de1fff60 free  unmarked
+0xee9de1fff68 free  unmarked
+0xee9de1fff70 free  unmarked
+0xee9de1fff78 free  unmarked
+fatal error: found pointer to free object
+
+runtime stack:
+runtime.throw({0x105881781?, 0x8?})
+	runtime/panic.go:1229 +0x38 fp=0x16bf82bb0 sp=0x16bf82b80 pc=0x104f0ca48
+runtime.(*mspan).reportZombies(0x108b34d20)
+	runtime/mgcsweep.go:893 +0x314 fp=0x16bf82c30 sp=0x16bf82bb0 pc=0x104ec10b4
+runtime.(*sweepLocked).sweep(0x16bf82d88?, 0x0)
+	runtime/mgcsweep.go:673 +0xbd0 fp=0x16bf82d50 sp=0x16bf82c30 pc=0x104ec0840
+runtime.(*mcentral).uncacheSpan(0x16bf82db8?, 0x104ea4954?)
+	runtime/mcentral.go:237 +0xbc fp=0x16bf82d80 sp=0x16bf82d50 pc=0x104eaac3c
+runtime.(*mcache).releaseAll(0x1089a85f0)
+	runtime/mcache.go:322 +0x188 fp=0x16bf82df0 sp=0x16bf82d80 pc=0x104eaa4e8
+runtime.(*mcache).prepareForSweep(0x1089a85f0)
+	runtime/mcache.go:366 +0x4c fp=0x16bf82e20 sp=0x16bf82df0 pc=0x104eaa61c
+runtime.gcMarkTermination.func4(0xee9de005808)
+	runtime/mgc.go:1546 +0x24 fp=0x16bf82e50 sp=0x16bf82e20 pc=0x104f076e4
+runtime.forEachPInternal(0x10656f798)
+	runtime/proc.go:2167 +0x178 fp=0x16bf82ee0 sp=0x16bf82e50 pc=0x104eda728
+runtime.gcMarkTermination.forEachP.func7()
+	runtime/proc.go:2126 +0x40 fp=0x16bf82f10 sp=0x16bf82ee0 pc=0x104eb3130
+runtime.systemstack(0x7fc000)
+	runtime/asm_arm64.s:399 +0x68 fp=0x16bf82f20 sp=0x16bf82f10 pc=0x104f12888
+
+goroutine 84 gp=0xee9de45c1e0 m=3 mp=0xee9de019008 [flushing proc caches]:
+runtime.systemstack_switch()
+	runtime/asm_arm64.s:347 +0x8 fp=0xee9de805c40 sp=0xee9de805c30 pc=0x104f12808
+runtime.forEachP(...)
+	runtime/proc.go:2112
+runtime.gcMarkTermination({0xc0?, 0x1331f928480ca?, 0xc?, 0x0?})
+	runtime/mgc.go:1545 +0x5f4 fp=0xee9de805e80 sp=0xee9de805c40 pc=0x104eb28c4
+runtime.gcMarkDone()
+	runtime/mgc.go:1173 +0x364 fp=0xee9de805f20 sp=0xee9de805e80 pc=0x104eb1bc4
+runtime.gcBgMarkWorker(0xee9de341810)
+	runtime/mgc.go:1912 +0x29c fp=0xee9de805fb0 sp=0xee9de805f20 pc=0x104eb372c
+runtime.gcBgMarkStartWorkers.gowrap1()
+	runtime/mgc.go:1695 +0x20 fp=0xee9de805fd0 sp=0xee9de805fb0 pc=0x104eb3470
+runtime.goexit({})
+	runtime/asm_arm64.s:1447 +0x4 fp=0xee9de805fd0 sp=0xee9de805fd0 pc=0x104f14a04
+created by runtime.gcBgMarkStartWorkers in goroutine 1
+	runtime/mgc.go:1695 +0x134
+
@@ -42,7 +42,7 @@ type currentFile struct {
 }

 func (d *diskStore) Serve(ctx context.Context) {
-	if err := os.MkdirAll(d.dir, 0o700); err != nil {
+	if err := os.MkdirAll(d.dir, os.ModePerm); err != nil {
 		log.Println("Creating directory:", err)
 		return
 	}
@@ -62,7 +62,7 @@ func (d *diskStore) Serve(ctx context.Context) {
 		case entry := <-d.inbox:
 			path := d.fullPath(entry.path)

-			if err := os.MkdirAll(filepath.Dir(path), 0o700); err != nil {
+			if err := os.MkdirAll(filepath.Dir(path), os.ModePerm); err != nil {
 				log.Println("Creating directory:", err)
 				continue
 			}
@@ -77,7 +77,7 @@ func (d *diskStore) Serve(ctx context.Context) {
 				log.Println("Failed to compress crash report:", err)
 				continue
 			}
-			if err := os.WriteFile(path, buf.Bytes(), 0o600); err != nil {
+			if err := os.WriteFile(path, buf.Bytes(), 0o666); err != nil {
 				log.Printf("Failed to write %s: %v", entry.path, err)
 				_ = os.Remove(path)
 				continue
@@ -136,15 +136,25 @@ func (d *diskStore) Exists(path string) bool {
 }

 func (d *diskStore) clean() {
-	for len(d.currentFiles) > 0 && (len(d.currentFiles) > d.maxFiles || d.currentSize > d.maxBytes) {
-		f := d.currentFiles[0]
+	numDeleted := 0
+	for idx := range d.currentFiles {
+		if len(d.currentFiles)-numDeleted < d.maxFiles && d.currentSize < d.maxBytes {
+			break
+		}
+
+		f := d.currentFiles[idx]
 		log.Println("Removing", f.path)
 		if err := os.Remove(f.path); err != nil {
 			log.Println("Failed to remove file:", err)
 		}
-		d.currentFiles = d.currentFiles[1:]
 		d.currentSize -= f.size
+		numDeleted = idx + 1
 	}
+
+	// Compact currentFiles
+	copy(d.currentFiles, d.currentFiles[numDeleted:])
+	d.currentFiles = d.currentFiles[:len(d.currentFiles)-numDeleted]
+
 	var oldest time.Duration
 	if len(d.currentFiles) > 0 {
 		oldest = time.Since(time.Unix(d.currentFiles[0].mtime, 0)).Truncate(time.Minute)
@@ -158,7 +168,7 @@ func (d *diskStore) clean() {
 }

 func (d *diskStore) inventory() error {
-	d.currentFiles = nil
+	d.currentFiles = d.currentFiles[:0]
 	d.currentSize = 0
 	err := filepath.Walk(d.dir, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
@@ -20,6 +20,7 @@ import (
 	"io"
 	"log"
 	"net/http"
+	"net/http/pprof"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -29,7 +30,7 @@ import (
 	raven "github.com/getsentry/raven-go"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/syncthing/syncthing/lib/build"
-	"github.com/syncthing/syncthing/lib/ur"
+	"github.com/syncthing/syncthing/lib/ur/contract"
 )

 const maxRequestSize = 1 << 20 // 1 MiB
@@ -89,6 +90,7 @@ func main() {
 	if params.MetricsListen != "" {
 		mmux := http.NewServeMux()
 		mmux.Handle("/metrics", promhttp.Handler())
+		mmux.HandleFunc("/debug/pprof/", pprof.Index)
 		go func() {
 			if err := http.ListenAndServe(params.MetricsListen, mmux); err != nil {
 				log.Fatalln("HTTP serve metrics:", err)
@@ -123,12 +125,13 @@ func handleFailureFn(dsn, failureDir string, ignore *ignorePatterns) func(w http
 			return
 		}

-		if ignore.match(bs) {
+		if pat, ok := ignore.match(bs); ok {
+			metricIgnoreMatchesTotal.WithLabelValues(pat).Inc()
 			result = "ignored"
 			return
 		}

-		var reports []ur.FailureReport
+		var reports []contract.FailureReport
 		err = json.Unmarshal(bs, &reports)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusBadRequest)
@@ -176,7 +179,7 @@ func handleFailureFn(dsn, failureDir string, ignore *ignorePatterns) func(w http
 	}
 }

-func saveFailureWithGoroutines(data ur.FailureData, failureDir string) (string, error) {
+func saveFailureWithGoroutines(data contract.FailureData, failureDir string) (string, error) {
 	bs := make([]byte, len(data.Description)+len(data.Goroutines))
 	copy(bs, data.Description)
 	copy(bs[len(data.Description):], data.Goroutines)
@@ -216,14 +219,14 @@ func loadIgnorePatterns(path string) (*ignorePatterns, error) {
 	return &ignorePatterns{patterns: patterns}, nil
 }

-func (i *ignorePatterns) match(report []byte) bool {
+func (i *ignorePatterns) match(report []byte) (string, bool) {
 	if i == nil {
-		return false
+		return "", false
 	}
 	for _, re := range i.patterns {
 		if re.Match(report) {
-			return true
+			return re.String(), true
 		}
 	}
-	return false
+	return "", false
 }
@@ -37,4 +37,24 @@ var (
 		Subsystem: "crashreceiver",
 		Name:      "diskstore_oldest_age_seconds",
 	})
+	metricSentryReportsTotal = promauto.NewCounterVec(prometheus.CounterOpts{
+		Namespace: "syncthing",
+		Subsystem: "crashreceiver",
+		Name:      "sentry_reports_total",
+	}, []string{"result"})
+	metricIgnoreMatchesTotal = promauto.NewCounterVec(prometheus.CounterOpts{
+		Namespace: "syncthing",
+		Subsystem: "crashreceiver",
+		Name:      "ignore_matches_total",
+	}, []string{"pattern"})
+	metricSourceCodeLoadsTotal = promauto.NewCounterVec(prometheus.CounterOpts{
+		Namespace: "syncthing",
+		Subsystem: "crashreceiver",
+		Name:      "source_code_loads_total",
+	}, []string{"result"})
+	metricSourceCodeCacheSize = promauto.NewGauge(prometheus.GaugeOpts{
+		Namespace: "syncthing",
+		Subsystem: "crashreceiver",
+		Name:      "source_code_cache_size",
+	})
 )
@@ -10,6 +10,7 @@ import (
 	"bytes"
 	"context"
 	"errors"
+	"fmt"
 	"io"
 	"log"
 	"regexp"
@@ -52,11 +53,15 @@ func (s *sentryService) Serve(ctx context.Context) {
 			pkt, err := parseCrashReport(req.reportID, req.data)
 			if err != nil {
 				log.Println("Failed to parse crash report:", err)
+				metricSentryReportsTotal.WithLabelValues("parse_failure").Inc()
 				continue
 			}
 			if err := sendReport(s.dsn, pkt, req.userID); err != nil {
 				log.Println("Failed to send crash report:", err)
+				metricSentryReportsTotal.WithLabelValues("send_failure").Inc()
+				continue
 			}
+			metricSentryReportsTotal.WithLabelValues("success").Inc()

 		case <-ctx.Done():
 			return
@@ -69,6 +74,7 @@ func (s *sentryService) Send(reportID, userID string, data []byte) bool {
 	case s.inbox <- sentryRequest{reportID, userID, data}:
 		return true
 	default:
+		metricCrashReportsTotal.WithLabelValues("overflow").Inc()
 		return false
 	}
 }
@@ -108,11 +114,10 @@ func parseCrashReport(path string, report []byte) (*raven.Packet, error) {

 	version, err := build.ParseVersion(string(parts[0]))
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("%w in %q", err, parts[0])
 	}
 	report = parts[1]

-	foundPanic := false
 	var subjectLine []byte
 	for {
 		parts = bytes.SplitN(report, []byte("\n"), 2)
@@ -123,14 +128,9 @@ func parseCrashReport(path string, report []byte) (*raven.Packet, error) {
 		line := parts[0]
 		report = parts[1]

-		if foundPanic {
-			// The previous line was our "Panic at ..." header. We are now
-			// at the beginning of the real panic trace and this is our
-			// subject line.
+		if bytes.HasPrefix(line, []byte("panic:")) || bytes.HasPrefix(line, []byte("fatal error:")) {
 			subjectLine = line
 			break
-		} else if bytes.HasPrefix(line, []byte("Panic at")) {
-			foundPanic = true
 		}
 	}

@@ -9,26 +9,33 @@ package main
 import (
 	"fmt"
 	"os"
+	"path/filepath"
 	"testing"
 )

 func TestParseReport(t *testing.T) {
-	bs, err := os.ReadFile("_testdata/panic.log")
+	files, err := filepath.Glob("_testdata/*.log")
 	if err != nil {
 		t.Fatal(err)
 	}
+	for _, file := range files {
+		bs, err := os.ReadFile(file)
+		if err != nil {
+			t.Fatal(err)
+		}

-	pkt, err := parseCrashReport("1/2/345", bs)
-	if err != nil {
-		t.Fatal(err)
+		pkt, err := parseCrashReport("1/2/345", bs)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		bs, err = pkt.JSON()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		fmt.Printf("%s\n", bs)
 	}
-
-	bs, err = pkt.JSON()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	fmt.Printf("%s\n", bs)
 }

 func TestCrashReportFingerprint(t *testing.T) {
@@ -15,23 +15,33 @@ import (
 	"strings"
 	"sync"
 	"time"
+
+	lru "github.com/hashicorp/golang-lru/v2"
 )

 const (
-	urlPrefix   = "https://raw.githubusercontent.com/syncthing/syncthing/"
-	httpTimeout = 10 * time.Second
+	urlPrefix       = "https://raw.githubusercontent.com/syncthing/syncthing/"
+	httpTimeout     = 10 * time.Second
+	maxCacheEntries = 1000
 )

+type cacheKey struct {
+	version string
+	file    string
+}
+
 type githubSourceCodeLoader struct {
 	mut     sync.Mutex
 	version string
-	cache   map[string]map[string][][]byte // version -> file -> lines
-	client  *http.Client
+
+	cache  *lru.TwoQueueCache[cacheKey, [][]byte] // version & file -> lines
+	client *http.Client
 }

 func newGithubSourceCodeLoader() *githubSourceCodeLoader {
+	cache, _ := lru.New2Q[cacheKey, [][]byte](maxCacheEntries)
 	return &githubSourceCodeLoader{
-		cache:  make(map[string]map[string][][]byte),
+		cache:  cache,
 		client: &http.Client{Timeout: httpTimeout},
 	}
 }
@@ -39,9 +49,6 @@ func newGithubSourceCodeLoader() *githubSourceCodeLoader {
 func (l *githubSourceCodeLoader) LockWithVersion(version string) {
 	l.mut.Lock()
 	l.version = version
-	if _, ok := l.cache[version]; !ok {
-		l.cache[version] = make(map[string][][]byte)
-	}
 }

 func (l *githubSourceCodeLoader) Unlock() {
@@ -50,11 +57,13 @@ func (l *githubSourceCodeLoader) Unlock() {

 func (l *githubSourceCodeLoader) Load(filename string, line, context int) ([][]byte, int) {
 	filename = filepath.ToSlash(filename)
-	lines, ok := l.cache[l.version][filename]
+	key := cacheKey{version: l.version, file: filename}
+	lines, ok := l.cache.Get(key)
 	if !ok {
 		// Cache whatever we managed to find (or nil if nothing, so we don't try again)
 		defer func() {
-			l.cache[l.version][filename] = lines
+			l.cache.Add(key, lines)
+			metricSourceCodeCacheSize.Set(float64(l.cache.Len()))
 		}()

 		knownPrefixes := []string{"/lib/", "/cmd/"}
@@ -73,19 +82,25 @@ func (l *githubSourceCodeLoader) Load(filename string, line, context int) ([][]b
 		resp, err := l.client.Get(url)
 		if err != nil {
 			fmt.Println("Loading source:", err)
+			metricSourceCodeLoadsTotal.WithLabelValues("failed").Inc()
 			return nil, 0
 		}
+		defer resp.Body.Close()
 		if resp.StatusCode != http.StatusOK {
 			fmt.Println("Loading source:", resp.Status)
+			metricSourceCodeLoadsTotal.WithLabelValues("failed").Inc()
 			return nil, 0
 		}
 		data, err := io.ReadAll(resp.Body)
-		_ = resp.Body.Close()
 		if err != nil {
 			fmt.Println("Loading source:", err.Error())
+			metricSourceCodeLoadsTotal.WithLabelValues("failed").Inc()
 			return nil, 0
 		}
 		lines = bytes.Split(data, []byte{'\n'})
+		metricSourceCodeLoadsTotal.WithLabelValues("loaded").Inc()
+	} else {
+		metricSourceCodeLoadsTotal.WithLabelValues("cached").Inc()
 	}

 	return getLineFromLines(lines, line, context)
@@ -7,21 +7,18 @@
 package main

 import (
+	"bytes"
 	"io"
 	"log"
 	"net/http"
 	"path"
 	"strings"
-	"sync"
 )

 type crashReceiver struct {
 	store  *diskStore
 	sentry *sentryService
 	ignore *ignorePatterns
-
-	ignoredMut sync.RWMutex
-	ignored    map[string]struct{}
 }

 func (r *crashReceiver) ServeHTTP(w http.ResponseWriter, req *http.Request) {
@@ -69,12 +66,6 @@ func (r *crashReceiver) serveGet(reportID string, w http.ResponseWriter, _ *http
 // serveHead responds to HEAD requests by checking if the named report
 // already exists in the system.
 func (r *crashReceiver) serveHead(reportID string, w http.ResponseWriter, _ *http.Request) {
-	r.ignoredMut.RLock()
-	_, ignored := r.ignored[reportID]
-	r.ignoredMut.RUnlock()
-	if ignored {
-		return // found
-	}
 	if !r.store.Exists(reportID) {
 		http.Error(w, "Not found", http.StatusNotFound)
 	}
@@ -87,17 +78,7 @@ func (r *crashReceiver) servePut(reportID string, w http.ResponseWriter, req *ht
 		metricCrashReportsTotal.WithLabelValues(result).Inc()
 	}()

-	r.ignoredMut.RLock()
-	_, ignored := r.ignored[reportID]
-	r.ignoredMut.RUnlock()
-	if ignored {
-		result = "ignored_cached"
-		io.Copy(io.Discard, req.Body)
-		return // found
-	}
-
 	// Read at most maxRequestSize of report data.
-	log.Println("Receiving report", reportID)
 	lr := io.LimitReader(req.Body, maxRequestSize)
 	bs, err := io.ReadAll(lr)
 	if err != nil {
@@ -106,14 +87,12 @@ func (r *crashReceiver) servePut(reportID string, w http.ResponseWriter, req *ht
 		return
 	}

-	if r.ignore.match(bs) {
-		r.ignoredMut.Lock()
-		if r.ignored == nil {
-			r.ignored = make(map[string]struct{})
-		}
-		r.ignored[reportID] = struct{}{}
-		r.ignoredMut.Unlock()
+	first := string(bytes.TrimSpace(bytes.Split(bs, []byte("\n"))[0]))
+
+	if pat, ok := r.ignore.match(bs); ok {
+		metricIgnoreMatchesTotal.WithLabelValues(pat).Inc()
 		result = "ignored"
+		log.Printf("Ignored report %s, matched: %s (%s)", reportID[:8], pat, first)
 		return
 	}

@@ -121,13 +100,15 @@ func (r *crashReceiver) servePut(reportID string, w http.ResponseWriter, req *ht

 	// Store the report
 	if !r.store.Put(reportID, bs) {
-		log.Println("Failed to store report (queue full):", reportID)
+		log.Println("Failed to store report (queue full):", reportID[:8])
 		result = "queue_failure"
 	}

 	// Send the report to Sentry
 	if !r.sentry.Send(reportID, userIDFor(req), bs) {
-		log.Println("Failed to send report to sentry (queue full):", reportID)
+		log.Println("Failed to send report to sentry (queue full):", reportID[:8])
 		result = "sentry_failure"
 	}
+
+	log.Printf("Received report %s (%s)", reportID[:8], first)
 }
@@ -52,5 +52,5 @@ func compressAndWrite(bs []byte, fullPath string) error {
 	gw.Close()

 	// Create an output file with the compressed report
-	return os.WriteFile(fullPath, buf.Bytes(), 0o644)
+	return os.WriteFile(fullPath, buf.Bytes(), 0o666)
 }
@@ -612,7 +612,7 @@ func saveRelays(file string, relays []*relay) error {
 	for _, relay := range relays {
 		content += relay.uri.String() + "\n"
 	}
-	return os.WriteFile(file, []byte(content), 0o777)
+	return os.WriteFile(file, []byte(content), 0o666)
 }

 func createTestCertificate() tls.Certificate {
@@ -15,7 +15,7 @@ import (
 	"io"
 	"log/slog"
 	"os"
-	"path"
+	"path/filepath"
 	"runtime"
 	"slices"
 	"strings"
@@ -77,7 +77,7 @@ func newInMemoryStore(dir string, flushInterval time.Duration, blobs blob.Store)
 			slog.Error("Failed to find database in blob storage", "error", cerr)
 			return s
 		}
-		fd, cerr := os.Create(path.Join(s.dir, "records.db"))
+		fd, cerr := os.Create(filepath.Join(s.dir, "records.db"))
 		if cerr != nil {
 			slog.Error("Failed to create database file", "error", cerr)
 			return s
@@ -257,7 +257,7 @@ func (s *inMemoryStore) write() (err error) {
 		}
 	}()

-	dbf := path.Join(s.dir, "records.db")
+	dbf := filepath.Join(s.dir, "records.db")
 	fd, err := os.Create(dbf + ".tmp")
 	if err != nil {
 		return err
@@ -340,7 +340,7 @@ func (s *inMemoryStore) write() (err error) {
 }

 func (s *inMemoryStore) read() (int, error) {
-	fd, err := os.Open(path.Join(s.dir, "records.db"))
+	fd, err := os.Open(filepath.Join(s.dir, "records.db"))
 	if err != nil {
 		return 0, err
 	}
@@ -7,6 +7,8 @@
 package main

 import (
+	"net/http"
+
 	"github.com/prometheus/client_golang/prometheus"
 )

@@ -113,14 +115,11 @@ var (
 )

 const (
-	dbOpGet             = "get"
-	dbOpPut             = "put"
-	dbOpMerge           = "merge"
-	dbOpDelete          = "delete"
-	dbResSuccess        = "success"
-	dbResNotFound       = "not_found"
-	dbResError          = "error"
-	dbResUnmarshalError = "unmarsh_err"
+	dbOpGet       = "get"
+	dbOpPut       = "put"
+	dbOpMerge     = "merge"
+	dbResSuccess  = "success"
+	dbResNotFound = "not_found"
 )

 func init() {
@@ -132,4 +131,24 @@ func init() {
 		databaseOperations, databaseOperationSeconds,
 		databaseWriteSeconds, databaseLastWritten,
 		retryAfterLevel)
+
+	// Prewarm important counters so they're available with zero values at
+	// startup
+
+	apiRequestsTotal.WithLabelValues(http.MethodGet, "200")
+	apiRequestsTotal.WithLabelValues(http.MethodGet, "404")
+	apiRequestsTotal.WithLabelValues(http.MethodPost, "204")
+	apiRequestsTotal.WithLabelValues(http.MethodPost, "400")
+	apiRequestsTotal.WithLabelValues(http.MethodPost, "403")
+
+	lookupRequestsTotal.WithLabelValues("success")
+	lookupRequestsTotal.WithLabelValues("not_found_ever")
+	lookupRequestsTotal.WithLabelValues("not_found_recent")
+
+	announceRequestsTotal.WithLabelValues("success")
+	announceRequestsTotal.WithLabelValues("bad_request")
+	announceRequestsTotal.WithLabelValues("no_certificate")
+
+	replicationSendsTotal.WithLabelValues("success")
+	replicationRecvsTotal.WithLabelValues("success")
 }
@@ -167,7 +167,7 @@ func (c *CLI) process(srcFs fs.Filesystem, dstFs fs.Filesystem, path string) err

 	var plainFd fs.File
 	if dstFs != nil {
-		if err := dstFs.MkdirAll(filepath.Dir(plainFi.Name), 0o700); err != nil {
+		if err := dstFs.MkdirAll(filepath.Dir(plainFi.Name), fs.ModePerm); err != nil {
 			return fmt.Errorf("%s: %w", plainFi.Name, err)
 		}

@@ -7,5 +7,5 @@
 package main

 type buildSpecificOptions struct {
-	HideConsole bool `name:"no-console" help:"Hide console window" env:"STHIDECONSOLE"`
+	HideConsole bool `name:"no-console" help:"Hide console window (Always enabled on Windows 11 24H2 and later)" env:"STHIDECONSOLE"`
 }
@@ -673,7 +673,7 @@ func auditWriter(auditFile string) io.Writer {
 		} else {
 			auditFlags = os.O_WRONLY | os.O_CREATE | os.O_APPEND
 		}
-		fd, err = os.OpenFile(auditFile, auditFlags, 0o600)
+		fd, err = os.OpenFile(auditFile, auditFlags, 0o666)
 		if err != nil {
 			slog.Error("Failed to open audit file", slogutil.Error(err))
 			os.Exit(svcutil.ExitError.AsInt())
@@ -915,10 +915,14 @@ func (u upgradeCmd) Run() error {
 		case err != nil && !os.IsNotExist(err):
 			slog.Error("Failed to lock for upgrade", slogutil.Error(err))
 			os.Exit(1)
-		case locked:
-			err = upgradeViaRest()
-		default:
+		case locked || os.IsNotExist(err):
+			// We got the lock, or the config directory didn't exist, so we
+			// can do a direct upgrade
 			err = upgrade.To(release)
+		default:
+			// We didn't get the lock, because Syncthing was running, so
+			// upgrade via REST.
+			err = upgradeViaRest()
 		}
 	}
 	if err != nil {
@@ -233,7 +233,7 @@ func copyStderr(stderr io.Reader, dst io.Writer) {

 		dst.Write([]byte(line))

-		if panicFd == nil && (strings.HasPrefix(line, "panic:") || strings.HasPrefix(line, "fatal error:")) {
+		if panicFd == nil && (strings.HasPrefix(line, "panic:") || strings.HasPrefix(line, "fatal error:") || strings.HasPrefix(line, "runtime:")) {
 			panicFd, err = os.Create(locations.GetTimestamped(locations.PanicLog))
 			if err != nil {
 				slog.Error("Failed to create panic log", slogutil.Error(err))
@@ -479,7 +479,7 @@ func (f *autoclosedFile) ensureOpenLocked() error {
 	// We open the file for write only, and create it if it doesn't exist.
 	flags := os.O_WRONLY | os.O_CREATE | os.O_APPEND

-	fd, err := os.OpenFile(f.name, flags, 0o644)
+	fd, err := os.OpenFile(f.name, flags, 0o666)
 	if err != nil {
 		return err
 	}
@@ -9,8 +9,27 @@

 package main

-import "os/exec"
+import "golang.org/x/sys/windows"

 func openURL(url string) error {
-	return exec.Command("cmd.exe", "/C", "start "+url).Run()
+	urlPtr, err := windows.UTF16PtrFromString(url)
+	if err != nil {
+		return err
+	}
+
+	verbPtr, err := windows.UTF16PtrFromString("open")
+	if err != nil {
+		return err
+	}
+
+	err = windows.ShellExecute(
+		0,       // hwnd
+		verbPtr, // operation
+		urlPtr,  // file
+		nil,     // parameters
+		nil,     // directory
+		windows.SW_SHOWNORMAL,
+	)
+
+	return err
 }
@@ -22,17 +22,17 @@ require (
 	github.com/julienschmidt/httprouter v1.3.0
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
 	github.com/maruel/panicparse/v2 v2.5.0
-	github.com/mattn/go-sqlite3 v1.14.44
+	github.com/mattn/go-sqlite3 v1.14.45
 	github.com/maxmind/geoipupdate/v6 v6.1.0
 	github.com/miscreant/miscreant.go v0.0.0-20200214223636-26d376326b75
 	github.com/oschwald/geoip2-golang v1.13.0
-	github.com/pierrec/lz4/v4 v4.1.26
+	github.com/pierrec/lz4/v4 v4.1.27
 	github.com/prometheus/client_golang v1.23.2
 	github.com/puzpuzpuz/xsync/v3 v3.5.1
-	github.com/quic-go/quic-go v0.59.0
+	github.com/quic-go/quic-go v0.60.0
 	github.com/rabbitmq/amqp091-go v1.11.0
 	github.com/rcrowley/go-metrics v0.0.0-20250401214520-65e299d6c5c9
-	github.com/shirou/gopsutil/v4 v4.26.4
+	github.com/shirou/gopsutil/v4 v4.26.5
 	github.com/syncthing/notify v0.0.0-20250528144937-c7027d4f7465
 	github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d
 	github.com/thejerf/suture/v4 v4.0.6
@@ -40,14 +40,14 @@ require (
 	github.com/vitrun/qart v0.0.0-20160531060029-bf64b92db6b0
 	github.com/willabides/kongplete v0.4.0
 	github.com/wlynxg/anet v0.0.5
-	golang.org/x/crypto v0.51.0
-	golang.org/x/exp v0.0.0-20260508232706-74f9aab9d74a
-	golang.org/x/net v0.54.0
-	golang.org/x/sys v0.44.0
-	golang.org/x/text v0.37.0
+	golang.org/x/crypto v0.53.0
+	golang.org/x/exp v0.0.0-20260611194520-c48552f49976
+	golang.org/x/net v0.56.0
+	golang.org/x/sys v0.46.0
+	golang.org/x/text v0.38.0
 	golang.org/x/time v0.15.0
 	google.golang.org/protobuf v1.36.11
-	modernc.org/sqlite v1.50.0
+	modernc.org/sqlite v1.52.0
 	sigs.k8s.io/yaml v1.6.0
 )

@@ -94,12 +94,12 @@ require (
 	github.com/tklauser/numcpus v0.11.0 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.yaml.in/yaml/v2 v2.4.2 // indirect
-	golang.org/x/mod v0.36.0 // indirect
-	golang.org/x/sync v0.20.0 // indirect
-	golang.org/x/telemetry v0.0.0-20260508192327-42602be52be6 // indirect
-	golang.org/x/tools v0.45.0 // indirect
+	golang.org/x/mod v0.37.0 // indirect
+	golang.org/x/sync v0.21.0 // indirect
+	golang.org/x/telemetry v0.0.0-20260610154732-fb80ec83bdd9 // indirect
+	golang.org/x/tools v0.46.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	modernc.org/libc v1.72.0 // indirect
+	modernc.org/libc v1.72.3 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect
 )
@@ -110,9 +110,6 @@ replace github.com/gobwas/glob v0.2.3 => github.com/calmh/glob v0.0.0-2022061508
 // https://github.com/jackpal/gateway/pull/49
 replace github.com/jackpal/gateway v1.1.1 => github.com/marbens-arch/gateway v1.1.2-0.20260308173556-c567cc04e7d4

-// https://github.com/mattn/go-sqlite3/pull/1338
-replace github.com/mattn/go-sqlite3 v1.14.44 => github.com/calmh/go-sqlite3 v1.14.35-0.20260509063420-822b4765116d
-
 tool (
 	github.com/calmh/xdr/cmd/genxdr
 	github.com/maxbrunsfeld/counterfeiter/v6
@@ -19,8 +19,6 @@ github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/calmh/glob v0.0.0-20220615080505-1d823af5017b h1:Fjm4GuJ+TGMgqfGHN42IQArJb77CfD/mAwLbDUoJe6g=
 github.com/calmh/glob v0.0.0-20220615080505-1d823af5017b/go.mod h1:91K7jfEsgJSyfSrX+gmrRfZMtntx6JsHolWubGXDopg=
-github.com/calmh/go-sqlite3 v1.14.35-0.20260509063420-822b4765116d h1:liVtRMlDBqDyR4qKkMRIFTdUK6+aoG6Oh97DKnhrCHc=
-github.com/calmh/go-sqlite3 v1.14.35-0.20260509063420-822b4765116d/go.mod h1:pjEuOr8IwzLJP2MfGeTb0A35jauH+C2kbHKBr7yXKVQ=
 github.com/calmh/incontainer v1.0.0 h1:g2cTUtZuFGmMGX8GoykPkN1Judj2uw8/3/aEtq4Z/rg=
 github.com/calmh/incontainer v1.0.0/go.mod h1:eOhqnw15c9X+4RNBe0W3HlUZFfX16O0EDsCOInTndHY=
 github.com/calmh/xdr v1.2.0 h1:GaGSNH4ZDw9kNdYqle6+RcAENiaQ8/611Ok+jQbBEeU=
@@ -149,6 +147,8 @@ github.com/maruel/panicparse/v2 v2.5.0/go.mod h1:DA2fDiBk63bKfBf4CVZP9gb4fuvzdPb
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
+github.com/mattn/go-sqlite3 v1.14.45 h1:6KA/spDguL3KV8rnybG7ezSaE4SeMR3KC9VbUoAQaIk=
+github.com/mattn/go-sqlite3 v1.14.45/go.mod h1:pjEuOr8IwzLJP2MfGeTb0A35jauH+C2kbHKBr7yXKVQ=
 github.com/maxbrunsfeld/counterfeiter/v6 v6.12.0 h1:aOeI7xAOVdK+R6xbVsZuU9HmCZYmQVmZgPf9xJUd2Sg=
 github.com/maxbrunsfeld/counterfeiter/v6 v6.12.0/go.mod h1:0hZWbtfeCYUQeAQdPLUzETiBhUSns7O6LDj9vH88xKA=
 github.com/maxmind/geoipupdate/v6 v6.1.0 h1:sdtTHzzQNJlXF5+fd/EoPTucRHyMonYt/Cok8xzzfqA=
@@ -179,8 +179,8 @@ github.com/oschwald/geoip2-golang v1.13.0 h1:Q44/Ldc703pasJeP5V9+aFSZFmBN7DKHbNs
 github.com/oschwald/geoip2-golang v1.13.0/go.mod h1:P9zG+54KPEFOliZ29i7SeYZ/GM6tfEL+rgSn03hYuUo=
 github.com/oschwald/maxminddb-golang v1.13.1 h1:G3wwjdN9JmIK2o/ermkHM+98oX5fS+k5MbwsmL4MRQE=
 github.com/oschwald/maxminddb-golang v1.13.1/go.mod h1:K4pgV9N/GcK694KSTmVSDTODk4IsCNThNdTmnaBZ/F8=
-github.com/pierrec/lz4/v4 v4.1.26 h1:GrpZw1gZttORinvzBdXPUXATeqlJjqUG/D87TKMnhjY=
-github.com/pierrec/lz4/v4 v4.1.26/go.mod h1:EoQMVJgeeEOMsCqCzqFm2O0cJvljX2nGZjcRIPL34O4=
+github.com/pierrec/lz4/v4 v4.1.27 h1:+PhzhWDrjRj89TH2sw43nE3+4+W8lSxIuQadEHZyjUk=
+github.com/pierrec/lz4/v4 v4.1.27/go.mod h1:EoQMVJgeeEOMsCqCzqFm2O0cJvljX2nGZjcRIPL34O4=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -200,8 +200,10 @@ github.com/prometheus/procfs v0.16.1 h1:hZ15bTNuirocR6u0JZ6BAHHmwS1p8B4P6MRqxtzM
 github.com/prometheus/procfs v0.16.1/go.mod h1:teAbpZRB1iIAJYREa1LsoWUXykVXA1KlTmWl8x/U+Is=
 github.com/puzpuzpuz/xsync/v3 v3.5.1 h1:GJYJZwO6IdxN/IKbneznS6yPkVC+c3zyY/j19c++5Fg=
 github.com/puzpuzpuz/xsync/v3 v3.5.1/go.mod h1:VjzYrABPabuM4KyBh1Ftq6u8nhwY5tBPKP9jpmh0nnA=
-github.com/quic-go/quic-go v0.59.0 h1:OLJkp1Mlm/aS7dpKgTc6cnpynnD2Xg7C1pwL6vy/SAw=
-github.com/quic-go/quic-go v0.59.0/go.mod h1:upnsH4Ju1YkqpLXC305eW3yDZ4NfnNbmQRCMWS58IKU=
+github.com/quic-go/go-ossfuzz-seeds v0.1.0 h1:APacT+iIaNF6fd8AGEiN3bT/Jtkd2jz4v4TzM7MFjy0=
+github.com/quic-go/go-ossfuzz-seeds v0.1.0/go.mod h1:3IOHRbJIc+L6YKMwfDtJAM9Vj9k0YY4muhuyUYk5tbk=
+github.com/quic-go/quic-go v0.60.0 h1:xcQioE8OM66UQLeUMHltK1CCcOu3JbVB4JAQdDQSB+0=
+github.com/quic-go/quic-go v0.60.0/go.mod h1:wpKpjmPpftl30sL6pFh7REVpjbcCVy4zt2vDyK1TuJk=
 github.com/rabbitmq/amqp091-go v1.11.0 h1:HxIctVm9Gid/Vtn706necmZ7Wj6pgGI2eqplRbEY8O8=
 github.com/rabbitmq/amqp091-go v1.11.0/go.mod h1:Hy4jKW5kQART1u+JkDTF9YYOQUHXqMuhrgxOEeS7G4o=
 github.com/rcrowley/go-metrics v0.0.0-20250401214520-65e299d6c5c9 h1:bsUq1dX0N8AOIL7EB/X911+m4EHsnWEHeJ0c+3TTBrg=
@@ -216,8 +218,8 @@ github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sclevine/spec v1.4.0 h1:z/Q9idDcay5m5irkZ28M7PtQM4aOISzOpj4bUPkDee8=
 github.com/sclevine/spec v1.4.0/go.mod h1:LvpgJaFyvQzRvc1kaDs0bulYwzC70PbiYjC4QnFHkOM=
-github.com/shirou/gopsutil/v4 v4.26.4 h1:B4SXVbcwTyrocPHEmWBC4uCYr4Xcu3MK1TXqbprAOWY=
-github.com/shirou/gopsutil/v4 v4.26.4/go.mod h1:LZ6ewCSkBqUpvSOf+LsTGnRinC6iaNUNMGBtDkJBaLQ=
+github.com/shirou/gopsutil/v4 v4.26.5 h1:RPcBXkpz7kOj9PqGFQOlBPZHsyaPvPVQc098y9RmCNM=
+github.com/shirou/gopsutil/v4 v4.26.5/go.mod h1:LZ6ewCSkBqUpvSOf+LsTGnRinC6iaNUNMGBtDkJBaLQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@@ -265,13 +267,13 @@ go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.51.0 h1:IBPXwPfKxY7cWQZ38ZCIRPI50YLeevDLlLnyC5wRGTI=
-golang.org/x/crypto v0.51.0/go.mod h1:8AdwkbraGNABw2kOX6YFPs3WM22XqI4EXEd8g+x7Oc8=
-golang.org/x/exp v0.0.0-20260508232706-74f9aab9d74a h1:+3jdDGGB8NGb1Zktc737jlt3/A5f6UlwSzmvqUuufxw=
-golang.org/x/exp v0.0.0-20260508232706-74f9aab9d74a/go.mod h1:d2fgXJLVs4dYDHUk5lwMIfzRzSrWCfGZb0ZqeLa/Vcw=
+golang.org/x/crypto v0.53.0 h1:QZ4Muo8THX6CizN2vPPd5fBGHyogrdK9fG4wLPFUsto=
+golang.org/x/crypto v0.53.0/go.mod h1:DNLU434OwVakk9PzuwV8w62mAJpRJL3vsgcfp4Qnsio=
+golang.org/x/exp v0.0.0-20260611194520-c48552f49976 h1:X8Hz2ImujgbmetVuW+w2YkyZChE3cBpZi2P158rTG9M=
+golang.org/x/exp v0.0.0-20260611194520-c48552f49976/go.mod h1:vnf4pv9iKZXY58sQE1L86zmNWJ4159e1RkcWiLCkeEY=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.36.0 h1:JJjpVx6myfUsUdAzZuOSTTmRE0PfZeNWzzvKrP7amb4=
-golang.org/x/mod v0.36.0/go.mod h1:moc6ELqsWcOw5Ef3xVprK5ul/MvtVvkIXLziUOICjUQ=
+golang.org/x/mod v0.37.0 h1:vF1DjpVEshcIqoEaauuHebaLk1O1forxjxBaVn884JQ=
+golang.org/x/mod v0.37.0/go.mod h1:m8S8VeM9r4dzDwjrKO0a1sZP3YjeMamRRlD+fmR2Q/0=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -280,13 +282,13 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20210428140749-89ef3d95e781/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220607020251-c690dde0001d/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.54.0 h1:2zJIZAxAHV/OHCDTCOHAYehQzLfSXuf/5SoL/Dv6w/w=
-golang.org/x/net v0.54.0/go.mod h1:Sj4oj8jK6XmHpBZU/zWHw3BV3abl4Kvi+Ut7cQcY+cQ=
+golang.org/x/net v0.56.0 h1:Rw8j/hFzGvJUZwNBXnAtf5sVDVt+65SK2C7IxCxZt5o=
+golang.org/x/net v0.56.0/go.mod h1:D3Ku6r+V6JROoZK144D2XfMHFcMq/0zSfLelVTCFKec=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
-golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+golang.org/x/sync v0.21.0 h1:HLII4xRRTtCRkxYp4HNFF0Js/Og6q2i++KXbg0gHCwM=
+golang.org/x/sync v0.21.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180926160741-c2ed4eda69e7/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -309,25 +311,25 @@ golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.44.0 h1:ildZl3J4uzeKP07r2F++Op7E9B29JRUy+a27EibtBTQ=
-golang.org/x/sys v0.44.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
-golang.org/x/telemetry v0.0.0-20260508192327-42602be52be6 h1:HjU6IWBiAgRIdAJ9/y1rwCn+UELEmwV+VsTLzj/W4sE=
-golang.org/x/telemetry v0.0.0-20260508192327-42602be52be6/go.mod h1:Eqhaxk/wZsWEH8CRxLwj6xzEJbz7k1EFGqx7nyCoabE=
+golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
+golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/telemetry v0.0.0-20260610154732-fb80ec83bdd9 h1:FjUup8XrRy7lv+XHONi6KKUSizeF2NnVrTnz/HhbohQ=
+golang.org/x/telemetry v0.0.0-20260610154732-fb80ec83bdd9/go.mod h1:3AWMyWHS+caVoiEXpiq6+tzKA40J4vQT3MYr80ZtQpc=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
-golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
+golang.org/x/text v0.38.0 h1:sXmwo9DwP3OK9EZ7PqAdaooSGozfl/3a6/xJcbzPRhE=
+golang.org/x/text v0.38.0/go.mod h1:YXZt3QhHUKYT53r2lLKFIVi6Ao1jdzrTR/KQ09qyxF4=
 golang.org/x/time v0.15.0 h1:bbrp8t3bGUeFOx08pvsMYRTCVSMk89u4tKbNOZbp88U=
 golang.org/x/time v0.15.0/go.mod h1:Y4YMaQmXwGQZoFaVFk4YpCt4FLQMYKZe9oeV/f4MSno=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.45.0 h1:18qN3FAooORvApf5XjCXgsuayZOEtXf6JK18I3+ONa8=
-golang.org/x/tools v0.45.0/go.mod h1:LuUGqqaXcXMEFEruIVJVm5mgDD8vww/z/SR1gQ4uE/0=
+golang.org/x/tools v0.46.0 h1:7jTurBkPZu4moS/Uy4OQT1M+QBlsj3wejyZwsT8Z7rk=
+golang.org/x/tools v0.46.0/go.mod h1:FrD85F8l+NWL+9XWBSyVSHO6Ne4jutsfIFba7AWQ5Ys=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -358,10 +360,10 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-modernc.org/cc/v4 v4.27.3 h1:uNCgn37E5U09mTv1XgskEVUJ8ADKpmFMPxzGJ0TSo+U=
-modernc.org/cc/v4 v4.27.3/go.mod h1:3YjcbCqhoTTHPycJDRl2WZKKFj0nwcOIPBfEZK0Hdk8=
-modernc.org/ccgo/v4 v4.32.4 h1:L5OB8rpEX4ZsXEQwGozRfJyJSFHbbNVOoQ59DU9/KuU=
-modernc.org/ccgo/v4 v4.32.4/go.mod h1:lY7f+fiTDHfcv6YlRgSkxYfhs+UvOEEzj49jAn2TOx0=
+modernc.org/cc/v4 v4.28.2 h1:3tQ0lf2ADtoby2EtSP+J7IE2SHwEJdP8ioR59wx7XpY=
+modernc.org/cc/v4 v4.28.2/go.mod h1:OnovgIhbbMXMu1aISnJ0wvVD1KnW+cAUJkIrAWh+kVI=
+modernc.org/ccgo/v4 v4.34.0 h1:yRLPFZieg532OT4rp4JFNIVcquwalMX26G95WQDqwCQ=
+modernc.org/ccgo/v4 v4.34.0/go.mod h1:AS5WYMyBakQ+fhsHhtP8mWB82KTGPkNNJDGfGQCe0/A=
 modernc.org/fileutil v1.4.0 h1:j6ZzNTftVS054gi281TyLjHPp6CPHr2KCxEXjEbD6SM=
 modernc.org/fileutil v1.4.0/go.mod h1:EqdKFDxiByqxLk8ozOxObDSfcVOv/54xDs/DUHdvCUU=
 modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
@@ -370,18 +372,18 @@ modernc.org/gc/v3 v3.1.2 h1:ZtDCnhonXSZexk/AYsegNRV1lJGgaNZJuKjJSWKyEqo=
 modernc.org/gc/v3 v3.1.2/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
 modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
 modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
-modernc.org/libc v1.72.0 h1:IEu559v9a0XWjw0DPoVKtXpO2qt5NVLAnFaBbjq+n8c=
-modernc.org/libc v1.72.0/go.mod h1:tTU8DL8A+XLVkEY3x5E/tO7s2Q/q42EtnNWda/L5QhQ=
+modernc.org/libc v1.72.3 h1:ZnDF4tXn4NBXFutMMQC4vtbTFSXhhKzR73fv0beZEAU=
+modernc.org/libc v1.72.3/go.mod h1:dn0dZNnnn1clLyvRxLxYExxiKRZIRENOfqQ8XEeg4Qs=
 modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
 modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
 modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
 modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
-modernc.org/opt v0.1.4 h1:2kNGMRiUjrp4LcaPuLY2PzUfqM/w9N23quVwhKt5Qm8=
-modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/opt v0.2.0 h1:tGyef5ApycA7FSEOMraay9SaTk5zmbx7Tu+cJs4QKZg=
+modernc.org/opt v0.2.0/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
 modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
 modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
-modernc.org/sqlite v1.50.0 h1:eMowQSWLK0MeiQTdmz3lqoF5dqclujdlIKeJA11+7oM=
-modernc.org/sqlite v1.50.0/go.mod h1:m0w8xhwYUVY3H6pSDwc3gkJ/irZT/0YEXwBlhaxQEew=
+modernc.org/sqlite v1.52.0 h1:p4dhYh2tXZCiyaqHwRVJDjIGKWyXayiQpThxgDzJaxo=
+modernc.org/sqlite v1.52.0/go.mod h1:tcNzv5p84E0skkmJn038y+hWJbLQXQqEnQfeh5r2JLM=
 modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
 modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
 modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
@@ -11,6 +11,7 @@
    "Add Device": "Dodaj uređaj",
    "Add Folder": "Dodaj mapu",
    "Add Remote Device": "Dodaj udaljeni uređaj",
+    "Add devices from the introducer to our device list, for mutually shared folders.": "Dodaj uređaje od posrednika u našu listu uređaja, za međusobno dijeljene mape.",
    "Add filter entry": "Dodaj unos filtra",
    "Add ignore patterns": "Dodaj uzorke zanemarivanja",
    "Add new folder?": "Dodati novu mapu?",
@@ -187,6 +188,7 @@
    "GUI Authentication Password": "Lozinka za GUI autentifikacju",
    "GUI Authentication User": "Korisnik za GUI autentifikacju",
    "GUI Authentication: Set User and Password": "GUI autentifikacija: Postavite korisnika i lozinku",
+    "GUI Listen Address": "GUI adresa za slušanje",
    "GUI Override Directory": "Direktorij za nadjačavanje GUI-ja",
    "GUI Theme": "Tema GUI-ja",
    "General": "Općenito",
@@ -214,6 +216,8 @@
    "Incorrect user name or password.": "Neispravno korisničko ime ili lozinka.",
    "Info": "Informacije",
    "Internally used paths:": "Interno korištene staze:",
+    "Introduced By": "Uveden od",
+    "Introducer": "Posrednik",
    "Introduction": "Uvod",
    "Inversion of the given condition (i.e. do not exclude)": "Inverzija zadanog uvjeta (tj. ne isključuj)",
    "Keep Versions": "Zadrži verzije",
@@ -248,6 +252,7 @@
    "Log tailing paused. Scroll to the bottom to continue.": "Praćenje zapisa je pauzirano. Pomaknite se na dno kako biste nastavili.",
    "Login failed, see Syncthing logs for details.": "Prijava nije uspjela. Pogledaj detalje u odjeljku zapisima sinkronizacije.",
    "Logs": "Zapisi",
+    "Maintain an index of all blocks in the folder, enabling reuse of blocks from other files when syncing changes. Disable to reduce database size at the cost of not being able to reuse blocks across files.": "Održavaj indeks svih blokova u mapi, što omogućava ponovnu upotrebu blokova iz drugih datoteka pri sinkronizaciji promjena. Onemogući da smanjiš veličinu baze podataka, uz cijenu nemogućnosti ponovne upotrebe blokova između datoteka.",
    "Major Upgrade": "Velika nadogradnja",
    "Mass actions": "Masovne radnje",
    "Maximum Age": "Maksimalna starost",
@@ -401,6 +406,7 @@
    "Support Bundle": "Paket podrške",
    "Sync Extended Attributes": "Sinkroniziraj proširena svojstva",
    "Sync Ownership": "Sinkroniziraj vlasništvo",
+    "Sync Protocol Listen Addresses": "Adrese za slušanje sinkronizacijskog protokola",
    "Sync Status": "Stanje sinkronizacije",
    "Syncing": "Sinkroniziranje",
    "Syncthing device ID for \"{%devicename%}\"": "Syncthing ID uređaja za „{{devicename}}“",
@@ -30,7 +30,7 @@
        <h4 class="text-center" translate>The Syncthing Authors</h4>
        <div class="row">
          <div class="col-md-12" id="contributor-list">
-Jakob Borg, Audrius Butkevicius, Simon Frei, Tomasz Wilczyński, Alexander Graf, Alexandre Viau, Anderson Mesquita, André Colomb, Antony Male, Ben Schulz, bt90, Caleb Callaway, Daniel Harte, Emil Lundberg, Eric P, Evgeny Kuznetsov, greatroar, Lars K.W. Gohlke, Lode Hoste, Marcus B Spencer, Michael Ploujnikov, Ross Smith II, Stefan Tatschner, Tommy van der Vorst, Wulf Weich, Adam Piggott, Adel Qalieh, Aleksey Vasenev, Alessandro G., Alex Ionescu, Alex Lindeman, Alex Xu, Alexander Seiler, Alexandre Alves, Aman Gupta, Andreas Sommer, andresvia, Andrew Rabert, Andrey D, andyleap, Anjan Momi, Anthony Goeckner, Antoine Lamielle, Anur, Aranjedeath, ardevd, Arkadiusz Tymiński, Aroun, Arthur Axel fREW Schmidt, Artur Zubilewicz, Ashish Bhate, Aurélien Rainone, BAHADIR YILMAZ, Bart De Vries, Beat Reichenbach, Ben Norcombe, Ben Shepherd, Ben Sidhom, Benedikt Heine, Benno Fünfstück, Benny Ng, boomsquared, Boqin Qin, Boris Rybalkin, Brendan Long, Catfriend1, Cathryne Linenweaver, Cedric Staniewski, Chih-Hsuan Yen, Choongkyu, Chris Howie, Chris Joel, Christian Kujau, Christian Prescott, chucic, cjc7373, Colin Kennedy, Cromefire_, cui, Cyprien Devillez, d-volution, Dan, Daniel Barczyk, Daniel Bergmann, Daniel Martí, Daniel Padrta, Daniil Gentili, Darshil Chanpura, dashangcun, David Rimmer, DeflateAwning, Denis A., Dennis Wilson, derekriemer, DerRockWolf, desbma, Devon G. Redekopp, digital, Dimitri Papadopoulos Orfanos, Dmitry Saveliev, domain, Domenic Horner, Dominik Heidler, Elias Jarlebring, Elliot Huffman, Emil Hessman, Eng Zer Jun, entity0xfe, Epifeny, epifeny, Eric Lesiuta, Erik Meitner, Evan Spensley, Federico Castagnini, Felix, Felix Ableitner, Felix Lampe, Felix Unterpaintner, Francois-Xavier Gsell, Frank Isemann, Gahl Saraf, georgespatton, ghjklw, Gilli Sigurdsson, Gleb Sinyavskiy, Graham Miln, Greg, guangwu, gudvinr, Gusted, Han Boetes, HansK-p, Harrison Jones, Hazem Krimi, Heiko Zuerker, Hireworks, Hugo Locurcio, Iain Barnett, Ian Johnson, ignacy123, Iskander Sharipov, Jaakko Hannikainen, Jack Croft, Jacob, Jake Peterson, James O'Beirne, James Patterson, Jaroslav Lichtblau, Jaroslav Malec, Jaspitta, Jaya Chithra, Jaya Kumar, Jeffery To, jelle van der Waa, Jens Diemer, Jochen Voss, Johan Vromans, John Rinehart, Jonas Thelemann, Jonathan, Jose Manuel Delicado, JRNitre, jtagcat, Julian Lehrhuber, Jörg Thalheim, Jędrzej Kula, Kapil Sareen, Karol Różycki, Kebin Liu, Keith Harrison, Kelong Cong, Ken'ichi Kamada, Kevin Allen, Kevin Bushiri, Kevin White, Jr., klemens, Kurt Fitzner, kylosus, Lars Lehtonen, Laurent Etiemble, Leo Arias, Liu Siyuan, Lord Landon Agahnim, LSmithx2, Luiz Angelo Daros de Luca, Lukas Lihotzki, Luke Hamburg, luzpaz, Majed Abdulaziz, Marc Laporte, Marcel Meyer, Marcin Dziadus, Marcus Legendre, Mario Majila, Mark Pulford, Martchus, Mateusz Naściszewski, Mateusz Ż, mathias4833, Matic Potočnik, Matt Burke, Matt Robenolt, Matteo Ruina, Maurizio Tomasi, Max, Max Schulze, MaximAL, Maximilian, Maxwell G, Michael Jephcote, Michael Rienstra, Michael Wang 汪東陽, MichaIng, Migelo, Mike Boone, MikeLund, MikolajTwarog, Mingxuan Lin, mv1005, Nate Morrison, nf, Nicholas Rishel, Nick Busey, Nico Stapelbroek, Nicolas Braud-Santoni, Nicolas Perraut, Niels Peter Roest, Nils Jakobi, NinoM4ster, Nitroretro, NoLooseEnds, Oliver Freyermuth, orangekame3, otbutz, overkill, Oyebanji Jacob Mayowa, Pablo, Pascal Jungblut, Paul Brit, Paul Donald, Pawel Palenica, perewa, Peter Badida, Peter Dave Hello, Peter Hoeg, Peter Marquardt, Phani Rithvij, Phil Davis, Philippe Schommers, Phill Luby, Piotr Bejda, polyfloyd, Prathik P Kulkarni, pullmerge, Quentin Hibon, Rahmi Pruitt, RealCharlesChia, red_led, Robert Carosi, Roberto Santalla, Robin Schoonover, Roman Zaynetdinov, rubenbe, Ruslan Yevdokymov, Ryan Qian, Ryan Sullivan, Sacheendra Talluri, Scott Klupfel, sec65, Sergey Mishin, Sertonix, Severin von Wnuck-Lipinski, Shaarad Dalvi, Shivam Kumar, Simon Mwepu, Simon Pickup, Sly_tom_cat, Sonu Kumar Saw, Stefan Kuntz, Steven Eckhoff, Suhas Gundimeda, Sven Bachmann, Sébastien WENSKE, Tao, Taylor Khan, Terrance, TheCreeper, Thomas, Thomas Hipp, Tim Abell, Tim Howes, Tobias Frölich, Tobias Klauser, Tobias Nygren, Tobias Tom, Tom Jakubowski, Tully Robinson, Tyler Brazier, Tyler Kropp, Umer-Azaz, Unrud, Val Markovic, vapatel2, Veeti Paananen, Victor Buinsky, Vik, Vil Brekin, villekalliomaki, Vladimir Rusinov, vvaswani, wangguoliang, WangXi, Will Rouesnel, William A. Kennington III, wouter bolsterlee, xarx00, Xavier O., xjtdy888, Yannic A., yparitcher, 佛跳墙, 落心
+Jakob Borg, Audrius Butkevicius, Simon Frei, Tomasz Wilczyński, Alexander Graf, Alexandre Viau, Anderson Mesquita, André Colomb, Antony Male, Ben Schulz, bt90, Caleb Callaway, Daniel Harte, Emil Lundberg, Eric P, Evgeny Kuznetsov, greatroar, Lars K.W. Gohlke, Lode Hoste, Marcus B Spencer, Michael Ploujnikov, Ross Smith II, Stefan Tatschner, Tommy van der Vorst, Wulf Weich, Adam Piggott, Adel Qalieh, Aleksey Vasenev, Alessandro G., Alex Ionescu, Alex Lindeman, Alex Xu, Alexander Seiler, Alexandre Alves, Aman Gupta, Andreas Sommer, andresvia, Andrew Rabert, Andrey D, andyleap, Anjan Momi, Anthony Goeckner, Antoine Lamielle, Anur, Aranjedeath, ardevd, Arkadiusz Tymiński, Aroun, Arthur Axel fREW Schmidt, Artur Zubilewicz, Ashish Bhate, Aurélien Rainone, BAHADIR YILMAZ, Bart De Vries, Beat Reichenbach, Ben Norcombe, Ben Shepherd, Ben Sidhom, Benedikt Heine, Benno Fünfstück, Benny Ng, boomsquared, Boqin Qin, Boris Rybalkin, Brendan Long, Catfriend1, Cathryne Linenweaver, Cedric Staniewski, Chih-Hsuan Yen, Choongkyu, Chris Howie, Chris Joel, Christian Kujau, Christian Prescott, chucic, cjc7373, Colin Kennedy, Cromefire_, cui, Cyprien Devillez, d-volution, Dan, Daniel Barczyk, Daniel Bergmann, Daniel Martí, Daniel Padrta, Daniil Gentili, Darshil Chanpura, dashangcun, David Rimmer, DeflateAwning, Denis A., Dennis Wilson, derekriemer, DerRockWolf, desbma, Devon G. Redekopp, digital, Dimitri Papadopoulos Orfanos, Dmitry Saveliev, domain, Domenic Horner, Dominik Heidler, Elias, Elias Jarlebring, Elliot Huffman, Emil Hessman, Eng Zer Jun, entity0xfe, Epifeny, epifeny, Eric Lesiuta, Erik Meitner, Evan Spensley, Federico Castagnini, Felix, Felix Ableitner, Felix Lampe, Felix Unterpaintner, Francois-Xavier Gsell, Frank Isemann, Gahl Saraf, georgespatton, ghjklw, Gilli Sigurdsson, Gleb Sinyavskiy, Graham Miln, Greg, guangwu, gudvinr, Gusted, Han Boetes, HansK-p, Harrison Jones, Hazem Krimi, Heiko Zuerker, Hireworks, Hugo Locurcio, Iain Barnett, Ian Johnson, ignacy123, Iskander Sharipov, Jaakko Hannikainen, Jack Croft, Jacob, Jake Peterson, James O'Beirne, James Patterson, Jaroslav Lichtblau, Jaroslav Malec, Jaspitta, Jaya Chithra, Jaya Kumar, Jeffery To, jelle van der Waa, Jens Diemer, Jochen Voss, Johan Vromans, John Rinehart, Jonas Thelemann, Jonathan, Jose Manuel Delicado, JRNitre, jtagcat, Julian Lehrhuber, Jörg Thalheim, Jędrzej Kula, Kapil Sareen, Karol Różycki, Kebin Liu, Keith Harrison, Kelong Cong, Ken'ichi Kamada, Kevin Allen, Kevin Bushiri, Kevin White, Jr., klemens, Kurt Fitzner, kylosus, Lars Lehtonen, Laurent Etiemble, Leo Arias, Liu Siyuan, Lord Landon Agahnim, LSmithx2, Luiz Angelo Daros de Luca, Lukas Lihotzki, Luke Hamburg, luzpaz, Majed Abdulaziz, Marc Laporte, Marcel Meyer, Marcin Dziadus, Marcus Legendre, Mario Majila, Mark Pulford, Martchus, Mateusz Naściszewski, Mateusz Ż, mathias4833, Matic Potočnik, Matt Burke, Matt Robenolt, Matteo Ruina, mattn, Maurizio Tomasi, Max, Max Schulze, MaximAL, Maximilian, Maxwell G, Michael Jephcote, Michael Rienstra, Michael Wang 汪東陽, MichaIng, Migelo, Mike Boone, MikeLund, MikolajTwarog, Mingxuan Lin, mv1005, Nate Morrison, nf, Nicholas Rishel, Nick Busey, Nico Stapelbroek, Nicolas Braud-Santoni, Nicolas Perraut, Niels Peter Roest, Nils Jakobi, NinoM4ster, Nitroretro, NoLooseEnds, Oliver Freyermuth, orangekame3, otbutz, overkill, Oyebanji Jacob Mayowa, Pablo, Pascal Jungblut, Paul Brit, Paul Donald, Pawel Palenica, perewa, Peter Badida, Peter Dave Hello, Peter Hoeg, Peter Marquardt, Phani Rithvij, Phil Davis, Philippe Schommers, Phill Luby, Piotr Bejda, polyfloyd, Prathik P Kulkarni, pullmerge, Quentin Hibon, Rahmi Pruitt, RealCharlesChia, red_led, Robert Carosi, Roberto Santalla, Robin Schoonover, Roman Zaynetdinov, rubenbe, Ruslan Yevdokymov, Ryan Qian, Ryan Sullivan, Sacheendra Talluri, Scott Klupfel, sec65, Sergey Mishin, Sertonix, Severin von Wnuck-Lipinski, Shaarad Dalvi, Shablone, Shivam Kumar, Simon Mwepu, Simon Pickup, Sly_tom_cat, Sonu Kumar Saw, Stefan Kuntz, Steven Eckhoff, Suhas Gundimeda, Sven Bachmann, Sébastien WENSKE, Tao, Taylor Khan, Terrance, TheCreeper, Thomas, Thomas Hipp, Tim Abell, Tim Howes, Tobias Frölich, Tobias Klauser, Tobias Nygren, Tobias Tom, Tom Jakubowski, Tully Robinson, Tyler Brazier, Tyler Kropp, Umer-Azaz, Unrud, Val Markovic, vapatel2, Veeti Paananen, Victor Buinsky, Vik, Vil Brekin, villekalliomaki, Vladimir Rusinov, vvaswani, wangguoliang, WangXi, Will Rouesnel, William A. Kennington III, wouter bolsterlee, xarx00, Xavier O., xjtdy888, Yannic A., yparitcher, 佛跳墙, 落心
          </div>
        </div>
      </div>
@@ -2997,6 +2997,9 @@ angular.module('syncthing.core')
                            $scope.restoreVersions.tree = $("#restoreTree").fancytree({
                                extensions: ["table", "filter", "glyph"],
                                quicksearch: true,
+                                // Node titles are remote-controlled file/path
+                                // components; render them as text, not HTML.
+                                escapeTitles: true,
                                filter: {
                                    hideExpanders: true,
                                    mode: "hide"
@@ -79,6 +79,7 @@ type DB interface {

 	// Cleanup
 	DropAllFiles(folder string, device protocol.DeviceID) error
+	DropFolderDevice(folder string, device protocol.DeviceID) error
 	DropDevice(device protocol.DeviceID) error
 	DropFilesNamed(folder string, device protocol.DeviceID, names []string) error
 	DropFolder(folder string) error
@@ -128,6 +128,11 @@ func (m metricsDB) DropAllFiles(folder string, device protocol.DeviceID) error {
 	return m.DB.DropAllFiles(folder, device)
 }

+func (m metricsDB) DropFolderDevice(folder string, device protocol.DeviceID) error {
+	defer m.account(folder, "DropFolderDevice")()
+	return m.DB.DropFolderDevice(folder, device)
+}
+
 func (m metricsDB) DropDevice(device protocol.DeviceID) error {
 	defer m.account("-", "DropDevice")()
 	return m.DB.DropDevice(device)
@@ -255,6 +255,17 @@ func (s *DB) DropAllFiles(folder string, device protocol.DeviceID) error {
 	return fdb.DropAllFiles(device)
 }

+func (s *DB) DropFolderDevice(folder string, device protocol.DeviceID) error {
+	fdb, err := s.getFolderDB(folder, false)
+	if errors.Is(err, errNoSuchFolder) {
+		return nil
+	}
+	if err != nil {
+		return err
+	}
+	return fdb.DropDevice(device)
+}
+
 func (s *DB) DropFilesNamed(folder string, device protocol.DeviceID, names []string) error {
 	fdb, err := s.getFolderDB(folder, false)
 	if errors.Is(err, errNoSuchFolder) {
@@ -13,7 +13,6 @@ import (
 	"errors"
 	"iter"
 	"os"
-	"path"
 	"path/filepath"
 	"sync"
 	"testing"
@@ -799,6 +798,13 @@ func TestDropAllFiles(t *testing.T) {
 		t.Fatal(err)
 	}

+	// The sequence is non-zero before the drop
+	if seq, err := db.GetDeviceSequence("a", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	} else if seq == 0 {
+		t.Error("expected non-zero sequence before drop")
+	}
+
 	// Drop folder A
 	if err := db.DropAllFiles("a", protocol.DeviceID{1}); err != nil {
 		t.Fatal(err)
@@ -826,6 +832,20 @@ func TestDropAllFiles(t *testing.T) {
 		t.Error("expected count to be two")
 	}

+	// The device sequence for the dropped folder is reset to zero.
+	if seq, err := db.GetDeviceSequence("a", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	} else if seq != 0 {
+		t.Log(seq)
+		t.Error("expected sequence to be reset to zero after DropAllFiles")
+	}
+	// Sequence for the untouched folder is unaffected.
+	if seq, err := db.GetDeviceSequence("b", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	} else if seq == 0 {
+		t.Error("expected non-zero sequence for untouched folder")
+	}
+
 	// Drop things that don't exist
 	if err := db.DropAllFiles("a", protocol.DeviceID{99}); err != nil {
 		t.Fatal(err)
@@ -838,6 +858,67 @@ func TestDropAllFiles(t *testing.T) {
 	}
 }

+func TestDropFolderDevice(t *testing.T) {
+	db, err := Open(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() {
+		if err := db.Close(); err != nil {
+			t.Fatal(err)
+		}
+	})
+
+	// Files from device 1 in folder a
+	err = db.Update("a", protocol.DeviceID{1}, []protocol.FileInfo{
+		genFile("test1", 1, 101),
+		genFile("test2", 2, 102),
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// Device 1 has an index ID.
+	if err := db.SetIndexID("a", protocol.DeviceID{1}, protocol.IndexID(0xdeadbeef)); err != nil {
+		t.Fatal(err)
+	}
+	if id, err := db.GetIndexID("a", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	} else if id != protocol.IndexID(0xdeadbeef) {
+		t.Errorf("expected index ID to be set, got %v", id)
+	}
+
+	// Drop device 1 from folder a
+	if err := db.DropFolderDevice("a", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	}
+
+	// Files for device 1 in folder a are gone
+	if _, ok, err := db.GetDeviceFile("a", protocol.DeviceID{1}, "test1"); err != nil || ok {
+		t.Log(err, ok)
+		t.Error("expected device 1 file in folder A to not exist")
+	}
+	if c, err := db.CountLocal("a", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	} else if c.Files != 0 {
+		t.Log(c)
+		t.Error("expected device 1 count in folder A to be zero")
+	}
+
+	// The index ID for device 1 in folder A is gone.
+	if id, err := db.GetIndexID("a", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	} else if id != 0 {
+		t.Errorf("expected index ID to be cleared, got %v", id)
+	}
+	if seq, err := db.GetDeviceSequence("a", protocol.DeviceID{1}); err != nil {
+		t.Fatal(err)
+	} else if seq != 0 {
+		t.Log(seq)
+		t.Error("expected sequence to be zero after DropFolderDevice")
+	}
+}
+
 func TestConcurrentUpdate(t *testing.T) {
 	t.Parallel()

@@ -1168,7 +1249,7 @@ func TestOpenSpecialName(t *testing.T) {

 	// Create a "base" dir that is in the way if the path becomes
 	// incorrectly truncated in the next steps.
-	base := path.Join(dir, "test")
+	base := filepath.Join(dir, "test")
 	if err := os.Mkdir(base, 0o755); err != nil {
 		t.Fatal(err)
 	}
@@ -235,6 +235,13 @@ func (s *folderDB) DropAllFiles(device protocol.DeviceID) error {
 	defer tx.Rollback() //nolint:errcheck
 	txp := &txPreparedStmts{Tx: tx}

+	if _, err := tx.Exec(`
+		UPDATE indexids SET sequence = 0
+		WHERE device_idx = ?
+	`, deviceIdx); err != nil {
+		return wrap(err)
+	}
+
 	// Drop all the file entries

 	result, err := tx.Exec(`
@@ -1248,7 +1248,7 @@ func (s *service) getSupportBundle(w http.ResponseWriter, r *http.Request) {
 	zipFilePath := filepath.Join(locations.GetBaseDir(locations.ConfigBaseDir), zipFileName)

 	// Write buffer zip to local zip file (back up)
-	if err := os.WriteFile(zipFilePath, zipFilesBuffer.Bytes(), 0o600); err != nil {
+	if err := os.WriteFile(zipFilePath, zipFilesBuffer.Bytes(), 0o666); err != nil {
 		slog.Warn("Failed to create support bundle zip (file)", slogutil.FilePath(zipFilePath), slogutil.Error(err))
 	}

@@ -16,7 +16,7 @@ import (
 // or, somewhere along the way the "+" in the version tag disappeared:
 // syncthing v1.23.7-dev.26.gdf7b56ae.dirty-stversionextra "Fermium Flea" (go1.20.5 darwin-arm64) jb@ok.kastelo.net 2023-07-12 06:55:26 UTC [Some Wrapper, purego, stnoupgrade]
 var (
-	longVersionRE = regexp.MustCompile(`syncthing\s+(v[^\s]+)\s+"([^"]+)"\s\(([^\s]+)\s+([^-]+)-([^)]+)\)\s+([^\s]+)[^\[]*(?:\[(.+)\])?$`)
+	longVersionRE = regexp.MustCompile(`syncthing\s+(v[^\s]+)\s+"([^"]+)"\s\(([^\s]+)\s+([^-]+)-([^)]+)\)\s+([^\s]+)[^\[]*(?:\[(.+)\])?`)
 	gitExtraRE    = regexp.MustCompile(`\.\d+\.g[0-9a-f]+`) // ".1.g6aaae618"
 	gitExtraSepRE = regexp.MustCompile(`[.-]`)              // dot or dash
 )
@@ -57,6 +57,20 @@ func TestParseVersion(t *testing.T) {
 				Extra:    []string{"Some Wrapper", "purego", "stnoupgrade"},
 			},
 		},
+		{
+			longVersion: `2026-05-18 14:53:32 INF syncthing v2.0.3 "Hafnium Hornet" (go1.25.0 darwin-amd64) builder@github.syncthing.net 2025-08-22 07:00:05 UTC [stnoupgrade] (log.pkg=main)`,
+			parsed: VersionParts{
+				Version:  "v2.0.3",
+				Tag:      "v2.0.3",
+				Commit:   "",
+				Codename: "Hafnium Hornet",
+				Runtime:  "go1.25.0",
+				GOOS:     "darwin",
+				GOARCH:   "amd64",
+				Builder:  "builder@github.syncthing.net",
+				Extra:    []string{"stnoupgrade"},
+			},
+		},
 	}

 	for _, tc := range cases {
@@ -168,7 +168,7 @@ func (f *FolderConfiguration) CreateMarker() error {
 	ffs := f.Filesystem()

 	// Create the marker as a directory
-	err := ffs.Mkdir(DefaultMarkerName, 0o755)
+	err := ffs.Mkdir(DefaultMarkerName, fs.ModePerm)
 	if err != nil {
 		return err
 	}
@@ -176,7 +176,7 @@ func (f *FolderConfiguration) CreateMarker() error {
 	// Create a file inside it, reducing the risk of the marker directory
 	// being removed by automated cleanup tools.
 	markerFile := filepath.Join(DefaultMarkerName, f.markerFilename())
-	if err := fs.WriteFile(ffs, markerFile, f.markerContents(), 0o644); err != nil {
+	if err := fs.WriteFile(ffs, markerFile, f.markerContents(), 0o666); err != nil {
 		return err
 	}

@@ -246,19 +246,10 @@ func (f *FolderConfiguration) checkFilesystemPath(ffs fs.Filesystem, path string
 }

 func (f *FolderConfiguration) CreateRoot() (err error) {
-	// Directory permission bits. Will be filtered down to something
-	// sane by umask on Unixes.
-	permBits := fs.FileMode(0o777)
-	if build.IsWindows {
-		// Windows has no umask so we must chose a safer set of bits to
-		// begin with.
-		permBits = 0o700
-	}
-
 	filesystem := f.Filesystem()

 	if _, err = filesystem.Stat("."); fs.IsNotExist(err) {
-		err = filesystem.MkdirAll(".", permBits)
+		err = filesystem.MkdirAll(".", fs.ModePerm)
 	}

 	return err
@@ -18,7 +18,6 @@ import (
 	"sync"

 	"github.com/syncthing/syncthing/internal/slogutil"
-	"github.com/syncthing/syncthing/lib/build"
 	"github.com/syncthing/syncthing/lib/fs"
 	"github.com/syncthing/syncthing/lib/netutil"
 	"github.com/syncthing/syncthing/lib/upgrade"
@@ -224,27 +223,20 @@ func migrateToConfigV24(cfg *Configuration) {
 }

 func migrateToConfigV23(cfg *Configuration) {
-	permBits := fs.FileMode(0o777)
-	if build.IsWindows {
-		// Windows has no umask so we must chose a safer set of bits to
-		// begin with.
-		permBits = 0o700
-	}
-
 	// Upgrade code remains hardcoded for .stfolder despite configurable
 	// marker name in later versions.

 	for i := range cfg.Folders {
-		fs := cfg.Folders[i].Filesystem()
+		ffs := cfg.Folders[i].Filesystem()
 		// Invalid config posted, or tests.
-		if fs == nil {
+		if ffs == nil {
 			continue
 		}
-		if stat, err := fs.Stat(DefaultMarkerName); err == nil && !stat.IsDir() {
-			err = fs.Remove(DefaultMarkerName)
+		if stat, err := ffs.Stat(DefaultMarkerName); err == nil && !stat.IsDir() {
+			err = ffs.Remove(DefaultMarkerName)
 			if err == nil {
-				err = fs.Mkdir(DefaultMarkerName, permBits)
-				fs.Hide(DefaultMarkerName) // ignore error
+				err = ffs.Mkdir(DefaultMarkerName, fs.ModePerm)
+				ffs.Hide(DefaultMarkerName) // ignore error
 			}
 			if err != nil {
 				slog.Warn("Failed to upgrade folder marker", slogutil.Error(err))
@@ -827,6 +827,11 @@ func (s *service) logListenAddressesChangedEvent(l ListenerAddresses) {
 func (s *service) CommitConfiguration(from, to config.Configuration) bool {
 	newDevices := make(map[protocol.DeviceID]bool, len(to.Devices))
 	for _, dev := range to.Devices {
+		if dev.DeviceID == s.myID {
+			// Do not report connection metrics for ourselves
+			continue
+		}
+
 		newDevices[dev.DeviceID] = true
 		registerDeviceMetrics(dev.DeviceID.String())
 	}
@@ -13,6 +13,7 @@ import (
 	"log/slog"
 	"net"
 	"net/url"
+	"slices"
 	"sync"
 	"time"

@@ -185,9 +186,10 @@ func (t *tcpListener) WANAddresses() []*url.URL {

 	t.mut.RUnlock()

-	// If we support ReusePort, add an unspecified zero port address, which will be resolved by the discovery server
-	// in hopes that TCP punch through works.
-	if dialer.SupportsReusePort {
+	// If we support ReusePort, and we are already announcing an unspecified
+	// address, add an unspecified zero port address, which will be resolved
+	// by the discovery server in hopes that TCP punch through works.
+	if dialer.SupportsReusePort && slices.ContainsFunc(uris, func(u *url.URL) bool { return u.Hostname() == "0.0.0.0" }) {
 		uri := *t.uri
 		uri.Host = "0.0.0.0:0"
 		uris = append([]*url.URL{&uri}, uris...)
@@ -289,7 +289,6 @@ func (c *globalClient) sendAnnouncement(ctx context.Context, timer *time.Timer)
 	resp.Body.Close()

 	if resp.StatusCode < 200 || resp.StatusCode > 299 {
-		slog.DebugContext(ctx, "announce POST", "server", c.server, "status", resp.Status)
 		c.setError(errors.New(resp.Status))

 		if h := resp.Header.Get("Retry-After"); h != "" {
@@ -174,7 +174,7 @@ func (f *BasicFilesystem) MkdirAll(path string, perm FileMode) error {
 		return err
 	}

-	return f.mkdirAll(path, os.FileMode(perm))
+	return os.MkdirAll(path, os.FileMode(perm))
 }

 func (f *BasicFilesystem) Lstat(name string) (FileInfo, error) {
@@ -241,15 +241,7 @@ func (f *BasicFilesystem) DirNames(name string) ([]string, error) {
 }

 func (f *BasicFilesystem) Open(name string) (File, error) {
-	rootedName, err := f.rooted(name)
-	if err != nil {
-		return nil, err
-	}
-	fd, err := os.Open(rootedName)
-	if err != nil {
-		return nil, err
-	}
-	return basicFile{fd, name}, err
+	return f.OpenFile(name, os.O_RDONLY, 0)
 }

 func (f *BasicFilesystem) OpenFile(name string, flags int, mode FileMode) (File, error) {
@@ -257,6 +249,7 @@ func (f *BasicFilesystem) OpenFile(name string, flags int, mode FileMode) (File,
 	if err != nil {
 		return nil, err
 	}
+	flags |= alwaysOpenFlags // enforce extra bits in flags
 	fd, err := os.OpenFile(rootedName, flags, os.FileMode(mode))
 	if err != nil {
 		return nil, err
@@ -265,15 +258,7 @@ func (f *BasicFilesystem) OpenFile(name string, flags int, mode FileMode) (File,
 }

 func (f *BasicFilesystem) Create(name string) (File, error) {
-	rootedName, err := f.rooted(name)
-	if err != nil {
-		return nil, err
-	}
-	fd, err := os.Create(rootedName)
-	if err != nil {
-		return nil, err
-	}
-	return basicFile{fd, name}, err
+	return f.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0o666)
 }

 func (*BasicFilesystem) Walk(_ string, _ WalkFunc) error {
@@ -14,8 +14,11 @@ import (
 	"path/filepath"
 	"strconv"
 	"strings"
+	"syscall"
 )

+const alwaysOpenFlags = syscall.O_NOFOLLOW // never open symlinks as the final path component
+
 func (f *BasicFilesystem) CreateSymlink(target, name string) error {
 	name, err := f.rooted(name)
 	if err != nil {
@@ -32,10 +35,6 @@ func (f *BasicFilesystem) ReadSymlink(name string) (string, error) {
 	return os.Readlink(name)
 }

-func (*BasicFilesystem) mkdirAll(path string, perm os.FileMode) error {
-	return os.MkdirAll(path, perm)
-}
-
 // Unhide is a noop on unix, as unhiding files requires renaming them.
 // We still check that the relative path does not try to escape the root
 func (f *BasicFilesystem) Unhide(name string) error {
@@ -21,6 +21,8 @@ import (
 	"golang.org/x/sys/windows"
 )

+const alwaysOpenFlags = 0 // no extra flags
+
 var errNotSupported = errors.New("symlinks not supported")

 func (BasicFilesystem) ReadSymlink(path string) (string, error) {
@@ -31,57 +33,6 @@ func (BasicFilesystem) CreateSymlink(target, name string) error {
 	return errNotSupported
 }

-// Required due to https://github.com/golang/go/issues/10900
-func (f *BasicFilesystem) mkdirAll(path string, perm os.FileMode) error {
-	// Fast path: if we can tell whether path is a directory or file, stop with success or error.
-	dir, err := os.Stat(path)
-	if err == nil {
-		if dir.IsDir() {
-			return nil
-		}
-		return &os.PathError{
-			Op:   "mkdir",
-			Path: path,
-			Err:  syscall.ENOTDIR,
-		}
-	}
-
-	// Slow path: make sure parent exists and then call Mkdir for path.
-	i := len(path)
-	for i > 0 && IsPathSeparator(path[i-1]) { // Skip trailing path separator.
-		i--
-	}
-
-	j := i
-	for j > 0 && !IsPathSeparator(path[j-1]) { // Scan backward over element.
-		j--
-	}
-
-	if j > 1 {
-		// Create parent
-		parent := path[0 : j-1]
-		if parent != filepath.VolumeName(parent) {
-			err = f.mkdirAll(parent, perm)
-			if err != nil {
-				return err
-			}
-		}
-	}
-
-	// Parent now exists; invoke Mkdir and use its result.
-	err = os.Mkdir(path, perm)
-	if err != nil {
-		// Handle arguments like "foo/." by
-		// double-checking that directory doesn't exist.
-		dir, err1 := os.Lstat(path)
-		if err1 == nil && dir.IsDir() {
-			return nil
-		}
-		return err
-	}
-	return nil
-}
-
 func (f *BasicFilesystem) Unhide(name string) error {
 	name, err := f.rooted(name)
 	if err != nil {
@@ -153,7 +153,7 @@ func newFakeFilesystem(rootURI string, _ ...Option) *fakeFS {
 		for (files == 0 || createdFiles < files) && (maxsize == 0 || writtenData>>20 < int64(maxsize)) {
 			dir := filepath.Join(fmt.Sprintf("%02x", rng.Intn(255)), fmt.Sprintf("%02x", rng.Intn(255)))
 			file := fmt.Sprintf("%016x", rng.Int63())
-			_ = fs.MkdirAll(dir, 0o755)
+			_ = fs.MkdirAll(dir, ModePerm)

 			fd, _ := fs.Create(filepath.Join(dir, file))
 			createdFiles++
@@ -169,7 +169,7 @@ func newFakeFilesystem(rootURI string, _ ...Option) *fakeFS {

 	if !nostfolder {
 		// Also create a default folder marker for good measure
-		_ = fs.Mkdir(".stfolder", 0o700)
+		_ = fs.Mkdir(".stfolder", ModePerm)
 	}

 	// We only set the latency after doing the operations required to create
@@ -382,7 +382,7 @@ loop:
 			if err != nil {
 				return nil, nil, err
 			}
-			if hasCurFile && file.BlocksEqual(curFile) {
+			if hasCurFile && curFile.Type == file.Type && file.BlocksEqual(curFile) {
 				// We are supposed to copy the entire file, and then fetch nothing. We
 				// are only updating metadata, so we don't actually *need* to make the
 				// copy.
@@ -701,7 +701,7 @@ func (f *sendReceiveFolder) checkParent(file string, scanChan chan<- string) boo
 		return true
 	}
 	f.sl.Debug("Creating parent directory", slogutil.FilePath(file))
-	if err := f.mtimefs.MkdirAll(parent, 0o755); err != nil {
+	if err := f.mtimefs.MkdirAll(parent, fs.ModePerm); err != nil {
 		f.newPullError(file, fmt.Errorf("creating parent dir: %w", err))
 		return false
 	}
@@ -1345,6 +1345,12 @@ func (f *sendReceiveFolder) copierRoutine(ctx context.Context, in <-chan copyBlo
 			default:
 			}

+			if block.Size == 0 {
+				// Copying zero bytes is a no-op.
+				state.copyDone(block)
+				continue
+			}
+
 			if !f.DisableSparseFiles && state.reused == 0 && block.IsEmpty() {
 				// The block is a block of all zeroes, and we are not reusing
 				// a temp file, so there is no need to do anything with it.
@@ -1534,6 +1540,13 @@ func (f *sendReceiveFolder) pullerRoutine(ctx context.Context, in <-chan pullBlo

 		bytes := state.block.Size

+		if bytes == 0 {
+			// Pulling zero bytes is a no-op.
+			state.pullDone(state.block)
+			out <- state.sharedPullerState
+			continue
+		}
+
 		if err := requestLimiter.TakeWithContext(ctx, bytes); err != nil {
 			state.fail(err)
 			out <- state.sharedPullerState
@@ -891,7 +891,7 @@ func TestPullCtxCancel(t *testing.T) {
 	emptyState := func() pullBlockState {
 		return pullBlockState{
 			sharedPullerState: newSharedPullerState(protocol.FileInfo{}, nil, f.folderID, "", nil, nil, false, false, protocol.FileInfo{}, false, false),
-			block:             protocol.BlockInfo{},
+			block:             protocol.BlockInfo{Size: 42},
 		}
 	}

@@ -20,7 +20,7 @@ import (
 	"github.com/syncthing/syncthing/lib/events"
 	"github.com/syncthing/syncthing/lib/protocol"
 	"github.com/syncthing/syncthing/lib/svcutil"
-	"github.com/syncthing/syncthing/lib/ur"
+	"github.com/syncthing/syncthing/lib/ur/contract"
 )

 type indexHandler struct {
@@ -470,7 +470,7 @@ func (s *indexHandler) logSequenceAnomaly(msg string, extra map[string]any) {
 		extraStrs[k] = fmt.Sprint(v)
 	}

-	s.evLogger.Log(events.Failure, ur.FailureData{
+	s.evLogger.Log(events.Failure, contract.FailureData{
 		Description: msg,
 		Extra:       extraStrs,
 	})
@@ -371,7 +371,7 @@ func (m *model) addAndStartFolderLockedWithIgnores(cfg config.FolderConfiguratio
 	for _, available := range devs {
 		if _, ok := expected[available]; !ok {
 			l.Debugln("dropping", folder, "state for", available)
-			_ = m.sdb.DropAllFiles(folder, available)
+			_ = m.sdb.DropFolderDevice(folder, available)
 		}
 	}

@@ -1784,7 +1784,7 @@ func (m *model) handleAutoAccepts(deviceID protocol.DeviceID, folder protocol.Fo

 			// Attempt to create it to make sure it does, now.
 			fullPath := filepath.Join(defaultFolderCfg.Path, path)
-			if err := defaultPathFs.MkdirAll(path, 0o700); err != nil {
+			if err := defaultPathFs.MkdirAll(path, fs.ModePerm); err != nil {
 				slog.Error("Failed to create path for auto-accepted folder", folder.LogAttr(), slogutil.FilePath(fullPath), slogutil.Error(err))
 				continue
 			}
@@ -2079,7 +2079,7 @@ func (m *model) Request(conn protocol.Connection, req *protocol.Request) (out pr
 		return nil, protocol.ErrGeneric
 	}

-	if folderCfg.Type != config.FolderTypeReceiveEncrypted && len(req.Hash) > 0 && !scanner.Validate(res.data[:n], req.Hash) {
+	if folderCfg.Type != config.FolderTypeReceiveEncrypted && !scanner.Validate(res.data[:n], req.Hash) {
 		m.recheckFile(deviceID, req.Folder, req.Name, req.Offset, req.Hash)
 		l.Debugf("%v REQ(in) failed validating data: %s: %q / %q o=%d s=%d", m, deviceID.Short(), req.Folder, req.Name, req.Offset, req.Size)
 		return nil, protocol.ErrNoSuchFile
@@ -9,6 +9,7 @@ package model
 import (
 	"bytes"
 	"context"
+	"crypto/sha256"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -93,8 +94,10 @@ func TestRequest(t *testing.T) {

 	m.ScanFolder("default")

+	foobarHash := sha256.Sum256([]byte("foobar"))
+
 	// Existing, shared file
-	res, err := m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 6})
+	res, err := m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 6, Hash: foobarHash[:]})
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -104,35 +107,42 @@ func TestRequest(t *testing.T) {
 	}

 	// Existing, nonshared file
-	_, err = m.Request(device2Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 6})
+	_, err = m.Request(device2Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 6, Hash: foobarHash[:]})
 	if err == nil {
 		t.Error("Unexpected nil error on insecure file read")
 	}

 	// Nonexistent file
-	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "nonexistent", Size: 6})
+	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "nonexistent", Size: 6, Hash: foobarHash[:]})
 	if err == nil {
 		t.Error("Unexpected nil error on insecure file read")
 	}

 	// Shared folder, but disallowed file name
-	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "../walk.go", Size: 6})
+	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "../walk.go", Size: 6, Hash: foobarHash[:]})
 	if err == nil {
 		t.Error("Unexpected nil error on insecure file read")
 	}

 	// Negative size
-	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: -4})
+	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: -4, Hash: foobarHash[:]})
 	if err == nil {
 		t.Error("Unexpected nil error on insecure file read")
 	}

-	// Larger block than available
+	// Missing hash
+	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 6})
+	if err == nil {
+		t.Error("Unexpected nil error on request without hash")
+	}
+
+	// Larger block than available, with a mismatched hash
 	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 42, Hash: []byte("hash necessary but not checked")})
 	if err == nil {
 		t.Error("Unexpected nil error on read past end of file")
 	}
-	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 42})
+	// Larger block than available, with the matching hash of the short read
+	_, err = m.Request(device1Conn, &protocol.Request{Folder: "default", Name: "foo", Size: 42, Hash: foobarHash[:]})
 	if err != nil {
 		t.Error("Unexpected error when large read should be permitted")
 	}
@@ -2979,15 +2989,16 @@ func TestRequestLimit(t *testing.T) {
 	defer cleanupModel(m)
 	m.ScanFolder("default")

+	emptyHash := sha256.Sum256(nil)
 	befReq := time.Now()
-	first, err := m.Request(conn, &protocol.Request{Folder: "default", Name: file, Size: 2000})
+	first, err := m.Request(conn, &protocol.Request{Folder: "default", Name: file, Size: 2000, Hash: emptyHash[:]})
 	if err != nil {
 		t.Fatalf("First request failed: %v", err)
 	}
 	reqDur := time.Since(befReq)
 	returned := make(chan struct{})
 	go func() {
-		second, err := m.Request(conn, &protocol.Request{Folder: "default", Name: file, Size: 2000})
+		second, err := m.Request(conn, &protocol.Request{Folder: "default", Name: file, Size: 2000, Hash: emptyHash[:]})
 		if err != nil {
 			t.Errorf("Second request failed: %v", err)
 		}
@@ -93,31 +93,25 @@ func (e encryptedModel) Request(req *Request) (RequestResponse, error) {
 	}
 	realSize := req.Size - blockOverhead
 	realOffset := req.Offset - int64(req.BlockNo*blockOverhead)
+	if realOffset < 0 {
+		panic("bug: realOffset underflow")
+	}

 	if req.Size < minPaddedSize {
 		return nil, errors.New("short request")
 	}

-	// Attempt to decrypt the block hash; it may be nil depending on what
-	// type of device the request comes from. Trusted devices with
-	// encryption enabled know the hash but don't bother to encrypt & send
-	// it to us. Untrusted devices have the hash from the encrypted index
-	// data and do send it. The model knows to only verify the hash if it
-	// actually gets one.
-
-	var realHash []byte
+	// Decrypt the block hash.
 	fileKey := e.keyGen.FileKey(realName, folderKey)
-	if len(req.Hash) > 0 {
-		var additional [8]byte
-		binary.BigEndian.PutUint64(additional[:], uint64(realOffset))
-		realHash, err = decryptDeterministic(req.Hash, fileKey, additional[:])
-		if err != nil {
-			// "Legacy", no offset additional data?
-			realHash, err = decryptDeterministic(req.Hash, fileKey, nil)
-		}
-		if err != nil {
-			return nil, fmt.Errorf("decrypting block hash: %w", err)
-		}
+	var additional [8]byte
+	binary.BigEndian.PutUint64(additional[:], uint64(realOffset))
+	realHash, err := decryptDeterministic(req.Hash, fileKey, additional[:])
+	if err != nil {
+		// "Legacy", no offset additional data?
+		realHash, err = decryptDeterministic(req.Hash, fileKey, nil)
+	}
+	if err != nil {
+		return nil, fmt.Errorf("decrypting block hash: %w", err)
 	}

 	// Perform that request and grab the data.
@@ -68,15 +68,16 @@ const (
 )

 var (
-	ErrClosed             = errors.New("connection closed")
-	ErrTimeout            = errors.New("read timeout")
-	errNotCompressible    = errors.New("not compressible")
-	errUnknownMessage     = errors.New("unknown message")
-	errInvalidFilename    = errors.New("filename is invalid")
-	errUncleanFilename    = errors.New("filename not in canonical format")
-	errDeletedHasBlocks   = errors.New("deleted file with non-empty block list")
-	errDirectoryHasBlocks = errors.New("directory with non-empty block list")
-	errFileHasNoBlocks    = errors.New("file with empty block list")
+	ErrClosed           = errors.New("connection closed")
+	ErrTimeout          = errors.New("read timeout")
+	errNotCompressible  = errors.New("not compressible")
+	errUnknownMessage   = errors.New("unknown message")
+	errInvalidFilename  = errors.New("filename is invalid")
+	errUncleanFilename  = errors.New("filename not in canonical format")
+	errDeletedHasBlocks = errors.New("deleted file with non-empty block list")
+	errNonFileHasBlocks = errors.New("non-file type with non-empty block list")
+	errNonFileHasSize   = errors.New("non-file type with nonzero size")
+	errFileHasNoBlocks  = errors.New("file with empty block list")
 )

 type Model interface {
@@ -483,12 +484,18 @@ func (c *rawConnection) dispatcherLoop() (err error) {
 			if err := checkFilename(msg.Name); err != nil {
 				return newProtocolError(err, msgContext)
 			}
-			if msg.Size <= 0 {
+			if msg.Size < 0 {
 				return newProtocolError(fmt.Errorf("request size %d too small", msg.Size), msgContext)
 			}
 			if msg.Size > MaxRequestSize {
 				return newProtocolError(fmt.Errorf("request size %d exceeds maximum allowed", msg.Size), msgContext)
 			}
+			if len(msg.Hash) == 0 {
+				// Syncthing versions older than v1.28.1 omit the hash in
+				// encrypted requests from trusted devices (a rare config)
+				// and will run into this.
+				return newProtocolError(errors.New("request missing block hash"), msgContext)
+			}
 			go c.handleRequest(requestFromWire(msg))

 		case *bep.Response:
@@ -629,9 +636,13 @@ func checkFileInfoConsistency(f FileInfo) error {
 		// Deleted files should have no blocks
 		return errDeletedHasBlocks

-	case f.Type == FileInfoTypeDirectory && len(f.Blocks) != 0:
-		// Directories should have no blocks
-		return errDirectoryHasBlocks
+	case f.Type != FileInfoTypeFile && len(f.Blocks) != 0:
+		// Only files should have blocks
+		return errNonFileHasBlocks
+
+	case f.Type != FileInfoTypeFile && f.Size != 0:
+		// Only files should have a size
+		return errNonFileHasSize

 	case !f.Deleted && !f.IsInvalid() && f.Type == FileInfoTypeFile && len(f.Blocks) == 0:
 		// Non-deleted, non-invalid files should have at least one block
@@ -544,7 +544,7 @@ func TestDispatcherToCloseDeadlock(t *testing.T) {
 }

 func TestRequestMaxSize(t *testing.T) {
-	invalidSize := []int{-65536, 0, MaxRequestSize + 1}
+	invalidSize := []int{-65536, -1, MaxRequestSize + 1}
 	for _, s := range invalidSize {
 		t.Run(fmt.Sprintf("invalid/%d", s), func(t *testing.T) {
 			m := newTestModel()
@@ -560,6 +560,7 @@ func TestRequestMaxSize(t *testing.T) {
 				Id:   1,
 				Name: "valid",
 				Size: MaxRequestSize,
+				Hash: []byte{42},
 			}

 			res := <-c.outbox
@@ -573,6 +574,7 @@ func TestRequestMaxSize(t *testing.T) {
 				Id:   2,
 				Name: "invalid",
 				Size: int32(s),
+				Hash: []byte{42},
 			}

 			select {
@@ -592,6 +594,35 @@ func TestRequestMaxSize(t *testing.T) {
 	}
 }

+func TestRequestZeroSize(t *testing.T) {
+	// A zero-sized request should be accepted, since current versions of
+	// Syncthing send these. See https://github.com/syncthing/syncthing/issues/10709.
+	m := newTestModel()
+	rw := testutil.NewBlockingRW()
+	c := getRawConnection(NewConnection(c0ID, rw, &testutil.NoopRW{}, testutil.NoopCloser{}, m, new(mockedConnectionInfo), CompressionAlways, testKeyGen))
+	c.Start()
+	defer closeAndWait(c, rw)
+
+	c.inbox <- &bep.ClusterConfig{}
+	c.inbox <- &bep.Request{
+		Id:   1,
+		Name: "valid",
+		Size: 0,
+		Hash: []byte{42},
+	}
+
+	select {
+	case res := <-c.outbox:
+		if msg, ok := res.msg.(*bep.Response); !ok || msg.Id != 1 {
+			t.Errorf("bad response %#v", msg)
+		}
+	case <-c.dispatcherLoopStopped:
+		t.Fatal("dispatcher loop terminated, expected zero-sized request to be accepted")
+	case <-time.After(time.Second):
+		t.Fatal("timed out waiting for response")
+	}
+}
+
 func TestRequestInvalidFilename(t *testing.T) {
 	m := newTestModel()
 	rw := testutil.NewBlockingRW()
@@ -604,6 +635,7 @@ func TestRequestInvalidFilename(t *testing.T) {
 		Id:   1,
 		Name: "../escape",
 		Size: 1024,
+		Hash: []byte{42},
 	}

 	select {
@@ -120,25 +120,12 @@ func Blocks(ctx context.Context, r io.Reader, blocksize int, sizehint int64, cou
 	return blocks, nil
 }

-// Validate validates the hash, if len(hash)>0.
+// Validate validates the hash.
 func Validate(buf, hash []byte) bool {
-	if len(hash) > 0 {
-		hbuf := sha256.Sum256(buf)
-		return bytes.Equal(hbuf[:], hash)
-	}
-
-	return true
+	hbuf := sha256.Sum256(buf)
+	return bytes.Equal(hbuf[:], hash)
 }

-type noopHash struct{}
-
-func (noopHash) Sum32() uint32             { return 0 }
-func (noopHash) BlockSize() int            { return 0 }
-func (noopHash) Size() int                 { return 0 }
-func (noopHash) Reset()                    {}
-func (noopHash) Sum([]byte) []byte         { return nil }
-func (noopHash) Write([]byte) (int, error) { return 0, nil }
-
 type noopCounter struct{}

 func (*noopCounter) Update(_ int64) {}
@@ -282,3 +282,16 @@ func clear(v interface{}, since int) error {
 	}
 	return nil
 }
+
+type FailureReport struct {
+	FailureData
+
+	Count   int
+	Version string
+}
+
+type FailureData struct {
+	Description string
+	Goroutines  string
+	Extra       map[string]string
+}
@@ -23,6 +23,7 @@ import (
 	"github.com/syncthing/syncthing/lib/events"
 	"github.com/syncthing/syncthing/lib/svcutil"
 	"github.com/syncthing/syncthing/lib/tlsutil"
+	"github.com/syncthing/syncthing/lib/ur/contract"

 	"github.com/thejerf/suture/v4"
 )
@@ -39,23 +40,10 @@ var (
 	invalidEventDataType = "failure event data is not a string"
 )

-type FailureReport struct {
-	FailureData
-
-	Count   int
-	Version string
-}
-
-type FailureData struct {
-	Description string
-	Goroutines  string
-	Extra       map[string]string
-}
-
-func FailureDataWithGoroutines(description string) FailureData {
+func FailureDataWithGoroutines(description string) contract.FailureData {
 	var buf strings.Builder
 	pprof.Lookup("goroutine").WriteTo(&buf, 1)
-	return FailureData{
+	return contract.FailureData{
 		Description: description,
 		Goroutines:  buf.String(),
 		Extra:       make(map[string]string),
@@ -86,7 +74,7 @@ type failureHandler struct {
 type failureStat struct {
 	first, last time.Time
 	count       int
-	data        FailureData
+	data        contract.FailureData
 }

 func (h *failureHandler) Serve(ctx context.Context) error {
@@ -105,24 +93,24 @@ func (h *failureHandler) Serve(ctx context.Context) error {
 			if !ok {
 				// Just to be safe - shouldn't ever happen, as
 				// evChan is set to nil when unsubscribing.
-				h.addReport(FailureData{Description: evChanClosed}, time.Now())
+				h.addReport(contract.FailureData{Description: evChanClosed}, time.Now())
 				evChan = nil
 				continue
 			}
-			var data FailureData
+			var data contract.FailureData
 			switch d := e.Data.(type) {
 			case string:
 				data.Description = d
-			case FailureData:
+			case contract.FailureData:
 				data = d
 			default:
 				// Same here, shouldn't ever happen.
-				h.addReport(FailureData{Description: invalidEventDataType}, time.Now())
+				h.addReport(contract.FailureData{Description: invalidEventDataType}, time.Now())
 				continue
 			}
 			h.addReport(data, e.Time)
 		case <-timer.C:
-			reports := make([]FailureReport, 0, len(h.buf))
+			reports := make([]contract.FailureReport, 0, len(h.buf))
 			now := time.Now()
 			for descr, stat := range h.buf {
 				if now.Sub(stat.last) > minDelay || now.Sub(stat.first) > maxDelay {
@@ -152,7 +140,7 @@ func (h *failureHandler) Serve(ctx context.Context) error {
 	if sub != nil {
 		sub.Unsubscribe()
 		if len(h.buf) > 0 {
-			reports := make([]FailureReport, 0, len(h.buf))
+			reports := make([]contract.FailureReport, 0, len(h.buf))
 			for _, stat := range h.buf {
 				reports = append(reports, newFailureReport(stat))
 			}
@@ -179,7 +167,7 @@ func (h *failureHandler) applyOpts(opts config.OptionsConfiguration, sub events.
 	return url, nil, nil
 }

-func (h *failureHandler) addReport(data FailureData, evTime time.Time) {
+func (h *failureHandler) addReport(data contract.FailureData, evTime time.Time) {
 	if stat, ok := h.buf[data.Description]; ok {
 		stat.last = evTime
 		stat.count++
@@ -204,7 +192,7 @@ func (*failureHandler) String() string {
 	return "FailureHandler"
 }

-func sendFailureReports(ctx context.Context, reports []FailureReport, url string) {
+func sendFailureReports(ctx context.Context, reports []contract.FailureReport, url string) {
 	var b bytes.Buffer
 	if err := json.NewEncoder(&b).Encode(reports); err != nil {
 		panic(err)
@@ -235,8 +223,8 @@ func sendFailureReports(ctx context.Context, reports []FailureReport, url string
 	resp.Body.Close()
 }

-func newFailureReport(stat *failureStat) FailureReport {
-	return FailureReport{
+func newFailureReport(stat *failureStat) contract.FailureReport {
+	return contract.FailureReport{
 		FailureData: stat.data,
 		Count:       stat.count,
 		Version:     build.LongVersion,
@@ -15,6 +15,7 @@ import (

 	"github.com/syncthing/syncthing/lib/build"
 	"github.com/syncthing/syncthing/lib/config"
+	"github.com/syncthing/syncthing/lib/fs"
 )

 func TestTaggedFilename(t *testing.T) {
@@ -256,3 +257,57 @@ func TestArchiveFoldersCreationPermission(t *testing.T) {
 		t.Errorf("földer2 permissions %v, want %v", folder2VersionsInfo.Mode(), folder2Perms)
 	}
 }
+
+func TestDupDirTreeWritePermissions(t *testing.T) {
+	// The structure should be replicated, with user permission bits set along the way
+
+	srcFs := fs.NewFilesystem(fs.FilesystemTypeFake, "TestDupDirTreeWritePermissions/srcFs")
+	dstFs := fs.NewFilesystem(fs.FilesystemTypeFake, "TestDupDirTreeWritePermissions/dstFs")
+
+	// A source dir to duplicate
+	_ = srcFs.Mkdir("foo", 0o444)
+	_ = srcFs.Mkdir("foo/bar", 0o555)
+	_ = srcFs.Mkdir("foo/bar/baz", 0o000)
+
+	// Duplication should succeed
+	if err := dupDirTree(srcFs, dstFs, "foo/bar/baz"); err != nil {
+		t.Fatal(err)
+	}
+
+	// Permissions should be the same, but with read/write/execute bits for
+	// the user
+	if info, err := dstFs.Lstat("foo"); err != nil || info.Mode() != 0o744 {
+		t.Fatalf("foo: 0o%o", info.Mode())
+	}
+	if info, err := dstFs.Lstat("foo/bar"); err != nil || info.Mode() != 0o755 {
+		t.Fatalf("foo/bar: 0o%o", info.Mode())
+	}
+	if info, err := dstFs.Lstat("foo/bar/baz"); err != nil || info.Mode() != 0o700 {
+		t.Fatalf("foo/bar/baz: 0o%o", info.Mode())
+	}
+}
+
+func TestDupDirFastPath(t *testing.T) {
+	srcFs := fs.NewFilesystem(fs.FilesystemTypeFake, "TestDupDirFastPath/srcFs")
+	dstFs := fs.NewFilesystem(fs.FilesystemTypeFake, "TestDupDirFastPath/dstFs")
+
+	// A source dir to duplicate
+	_ = srcFs.Mkdir("foo", 0o444)
+	_ = srcFs.Mkdir("foo/bar", 0o555)
+	_ = srcFs.Mkdir("foo/bar/baz", 0o000)
+
+	// The destination exists, but with too few permission bits
+	_ = dstFs.MkdirAll("foo/bar/baz", 0o555)
+
+	// Duplication should succeed
+	if err := dupDirTree(srcFs, dstFs, "foo/bar/baz"); err != nil {
+		t.Fatal(err)
+	}
+
+	// Permissions for the destination should have been updated. (This
+	// differs from what would have been created by the duplication of the
+	// 0o000 dir in the src, because it already existed.)
+	if info, err := dstFs.Lstat("foo/bar/baz"); err != nil || info.Mode() != 0o755 {
+		t.Fatalf("foo/bar/baz: 0o%o", info.Mode())
+	}
+}
@@ -155,7 +155,7 @@ func archiveFile(method fs.CopyRangeMethod, srcFs, dstFs fs.Filesystem, filePath
 	if err != nil {
 		if fs.IsNotExist(err) {
 			slog.Debug("Creating versions dir")
-			err := dstFs.MkdirAll(".", 0o755)
+			err := dstFs.MkdirAll(".", fs.ModePerm)
 			if err != nil {
 				return err
 			}
@@ -192,48 +192,78 @@ func archiveFile(method fs.CopyRangeMethod, srcFs, dstFs fs.Filesystem, filePath
 	return err
 }

-func dupDirTree(srcFs, dstFs fs.Filesystem, folderPath string) error {
-	// Return early if the folder already exists.
-	_, err := dstFs.Stat(folderPath)
-	if err == nil || !fs.IsNotExist(err) {
-		return err
+// dupDirTree ensures folderPath exists in dstFs, copying permissions mostly
+// from srcFs. Permissions are altered to have the user read, write, and
+// execute bits set so that Syncthing file operations are possible within
+// the destination directory.
+//
+// We want to retain the source group and other bits so that we do not
+// inadvertently open up a directory for users who shouldn't have access to
+// it, but we do not consider it a security issue to open up the permissions
+// for the current user.
+//
+// This is based on os.MkdirAll with our srcFs adjustments.
+func dupDirTree(srcFs, dstFs fs.Filesystem, path string) error {
+	const (
+		allPerms    = 0o777
+		minDirPerms = 0o700
+	)
+
+	// Fast path: if we can tell whether path is a directory or file, stop with success or error.
+	if dir, err := dstFs.Lstat(path); err == nil {
+		if !dir.IsDir() {
+			return errors.New("destination exists but is not a directory")
+		}
+		if dir.Mode()&minDirPerms != minDirPerms {
+			// We want all the required permission bits set
+			_ = dstFs.Chmod(path, dir.Mode()&allPerms|minDirPerms)
+		}
+		return nil
 	}
-	hadParent := true
-	for i := range folderPath {
-		if os.IsPathSeparator(folderPath[i]) {
-			// If the parent folder didn't exist, then this folder doesn't exist
-			// so we can skip the check
-			if hadParent {
-				_, err := dstFs.Stat(folderPath[:i])
-				if err == nil {
-					continue
-				}
-				if !fs.IsNotExist(err) {
-					return err
-				}
-			}
-			hadParent = false
-			err := dupDirWithPerms(srcFs, dstFs, folderPath[:i])
-			if err != nil {
-				return err
-			}
+
+	// Slow path: make sure parent exists and then call Mkdir for path.
+
+	// Extract the parent folder from path by first removing any trailing
+	// path separator and then scanning backward until finding a path
+	// separator or reaching the beginning of the string.
+	i := len(path) - 1
+	for i >= 0 && os.IsPathSeparator(path[i]) {
+		i--
+	}
+	for i >= 0 && !os.IsPathSeparator(path[i]) {
+		i--
+	}
+	if i < 0 {
+		i = 0
+	}
+
+	// If there is a parent directory, and it is not the volume name,
+	// recurse to ensure parent directory exists.
+	if parent := path[:i]; len(parent) > len(filepath.VolumeName(path)) {
+		if err := dupDirTree(srcFs, dstFs, parent); err != nil {
+			return err
 		}
 	}
-	return dupDirWithPerms(srcFs, dstFs, folderPath)
-}

-func dupDirWithPerms(srcFs, dstFs fs.Filesystem, folderPath string) error {
-	srcStat, err := srcFs.Stat(folderPath)
-	if err != nil {
+	// Parent now exists; invoke Mkdir and use its result.
+	srcPerms := fs.FileMode(minDirPerms)
+	if srcDir, err := srcFs.Lstat(path); err == nil {
+		srcPerms = srcDir.Mode()&allPerms | minDirPerms
+	}
+	if err := dstFs.Mkdir(path, srcPerms); err != nil {
+		// Handle arguments like "foo/." by
+		// double-checking that directory doesn't exist.
+		dir, err1 := dstFs.Lstat(path)
+		if err1 == nil && dir.IsDir() {
+			return nil
+		}
 		return err
 	}
-	// If we call Mkdir with srcStat.Mode(), we won't get the expected perms because of umask
-	// So, we create the folder with 0700, and then change the perms to the srcStat.Mode()
-	err = dstFs.Mkdir(folderPath, 0o700)
-	if err != nil {
-		return err
-	}
-	return dstFs.Chmod(folderPath, srcStat.Mode())
+
+	// Extra chmod to ensure our permissions override umask
+	_ = dstFs.Chmod(path, srcPerms)
+
+	return nil
 }

 func restoreFile(method fs.CopyRangeMethod, src, dst fs.Filesystem, filePath string, versionTime time.Time, tagger fileTagger) error {
@@ -298,7 +328,7 @@ func restoreFile(method fs.CopyRangeMethod, src, dst fs.Filesystem, filePath str
 		return err
 	}

-	_ = dst.MkdirAll(filepath.Dir(filePath), 0o755)
+	_ = dst.MkdirAll(filepath.Dir(filePath), fs.ModePerm)
 	err := osutil.RenameOrCopy(method, src, dst, sourceFile, filePath)
 	_ = dst.Chtimes(filePath, sourceMtime, sourceMtime)
 	return err
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "STDISCOSRV" "1" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "STDISCOSRV" "1" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 stdiscosrv \- Syncthing Discovery Server
 .SH SYNOPSIS
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "STRELAYSRV" "1" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "STRELAYSRV" "1" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 strelaysrv \- Syncthing Relay Server
 .SH SYNOPSIS
@@ -28,7 +28,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-BEP" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-BEP" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-bep \- Block Exchange Protocol v1
 .SH INTRODUCTION AND DEFINITIONS
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-CONFIG" "5" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-CONFIG" "5" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-config \- Syncthing Configuration
 .SH OVERVIEW
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-DEVICE-IDS" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-DEVICE-IDS" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-device-ids \- Understanding Device IDs
 .sp
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-EVENT-API" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-EVENT-API" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-event-api \- Event API
 .SH DESCRIPTION
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-FAQ" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-FAQ" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-faq \- Frequently Asked Questions
 .INDENT 0.0
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-GLOBALDISCO" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-GLOBALDISCO" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-globaldisco \- Global Discovery Protocol v3
 .SH ANNOUNCEMENTS
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-LOCALDISCO" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-LOCALDISCO" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-localdisco \- Local Discovery Protocol v4
 .SH MODE OF OPERATION
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-NETWORKING" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-NETWORKING" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-networking \- Firewall Setup
 .SH ROUTER SETUP
@@ -28,7 +28,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-RELAY" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-RELAY" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-relay \- Relay Protocol v1
 .SH WHAT IS A RELAY?
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-REST-API" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-REST-API" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-rest-api \- REST API
 .sp
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-SECURITY" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-SECURITY" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-security \- Security Principles
 .sp
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-STIGNORE" "5" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-STIGNORE" "5" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-stignore \- Prevent files from being synchronized to other nodes
 .SH SYNOPSIS
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING-VERSIONING" "7" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING-VERSIONING" "7" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing-versioning \- Keep automatic backups of deleted files by other nodes
 .sp
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "SYNCTHING" "1" "May 13, 2026" "v2.1.0" "Syncthing"
+.TH "SYNCTHING" "1" "Jun 07, 2026" "v2.1.0" "Syncthing"
 .SH NAME
 syncthing \- Syncthing
 .SH SYNOPSIS
@@ -93,7 +93,7 @@ func main() {
 	}
 	bs = authorsRe.ReplaceAll(bs, []byte("id=\"contributor-list\">\n"+replacement+"\n          </div>"))

-	if err := os.WriteFile(htmlFile, bs, 0o644); err != nil {
+	if err := os.WriteFile(htmlFile, bs, 0o666); err != nil {
 		log.Fatal(err)
 	}

@@ -265,7 +265,7 @@ func readAll(path string) []byte {
 }

 func writeFile(path string, data string) {
-	err := os.WriteFile(path, []byte(data), 0o644)
+	err := os.WriteFile(path, []byte(data), 0o666)
 	if err != nil {
 		log.Fatal(err)
 	}
Author	SHA1	Message	Date
Jakob Borg	ee275fee65	build(deps): update dependencies (#10740 ) Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-06-12 08:59:50 +02:00
Jakob Borg	6606e6b4d3	fix(protocol): be more stringent about blocks in non-file entries (#10737 ) Directories, but also symlinks, should not have blocks or a size. Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-06-11 18:52:24 +02:00
Jakob Borg	f6428af4c8	fix(protocol): always expect & validate block hash in requests (#10738 ) Verify that block requests have a hash and that it's correct. This helps prevent certain races and ensure that only expected data is ever returned in response to a request. (In Syncthing prior to 1.28.1 the block hash was omitted for encrypted requests from trusted devices. This breaks compatibility with that specific config on those versions.) --------- Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-06-11 18:51:25 +02:00
Jakob Borg	a5cbeeafea	fix(fs, model): improve symlink resilience in file shortcut (#10739 ) Ensure file was a file before the shortcut as well as after... (This was implied when talking to a correct implementation, but not enforced.) Make our file opening operations safe by default by ensuring the last path component is not a symlink. --------- Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-06-11 18:50:11 +02:00
Syncthing Release Automation	5dbf809a4c	chore(gui, man, authors): update docs, translations, and contributors	2026-06-08 05:17:05 +00:00
Simon Frei Marcus B Spencer Jakob Borg	e16b8013a6	chore(db, model): separate methods to drop a device vs its files (#10480 ) Fixes #10469 --------- Signed-off-by: Simon Frei <freisim93@gmail.com> Signed-off-by: Jakob Borg <jakob@kastelo.net> Co-authored-by: Marcus B Spencer <marcus@marcusspencer.us> Co-authored-by: Jakob Borg <jakob@kastelo.net>	2026-06-04 18:28:19 +00:00
Jakob Borg	6df85dc95c	fix: let umask do the thing (#10723 ) We had a few places where we had perhaps too much of an opinion on the permissions on created files and directories, sometimes fuled by a misconception about how permissions work in both Unix and Windows. Recap on the ground rules: - On all unixes, all file & directory creation (`Mkdir`, `MkdirAll`, `Create`, `WriteFile`, `Open`) has the given permission bits filtered via the user's umask. The proper permissions for us to use are in almost all cases 0o666 for files and 0o777 for directories, strange as that may look at the call site. - On Windows, there is no umask but in turn all of the permission bits except the user write bit are ignored. The absence of user write bit is converted into the read only attribute. This means that what is proper for Unix above is also proper for Windows. - We make an exception when creating files for certificate keys and the config / database directories, as those contain secrets we think should remain closed even if the user generally collaborates with other users on the system. (Also removal of a bugfixed copy of MkdirAll for Windows that hasn't been necessary for a few years.) --------- Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-06-03 10:54:04 +02:00
Jakob Borg	f93306c819	fix(gui): properly escape filenames in fancytree Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-06-02 16:54:21 +02:00
Jakob Borg	9cdff04877	fix(connections): do not report connection metrics for self (ref #10509 ) (#10724 ) Makes the metrics easier to interpret. Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-06-02 14:01:03 +02:00
ShabloneandElias	9bb5f9b4dd	fix: on Windows don't allocate console if not opened inside one (#10726 ) This change allows Syncthing to be launched from Explorer without showing a console window, while preserving the existing command-line behavior. Previously, launching syncthing.exe from Explorer would always allocate a console window, which could only be hidden later by using `--no-console`. It was not possible to avoid console allocation entirely without introducing other issues. On Windows 24H2 and later a new application manifest allows us to achieve it. See [console allocation policy](https://learn.microsoft.com/en-us/windows/console/console-allocation-policy) This manifest is built into a syso-file by `goversioninfo`, which is already used to generate Windows resource files consumed by the Go compiler. Note1: On Windows 24H2 and later, no console is allocated when Syncthing is launched from Explorer, even if `--no-console` is set to `False`. It can still be used as a CLI tool as usual if you call it from console. Note2: The content of the manifest file may not be formatted. Even a `newline` would break it. ### Testing Tested on Windows 11 25H2: No console visible from explorer. CLI works as usual. Ref #8046, ref #10633, ref #10481, ref #10600 Signed-off-by: Elias <1elias.bauer@gmail.com> Co-authored-by: Elias <1elias.bauer@gmail.com>	2026-06-02 14:00:38 +02:00
Syncthing Release Automation	8961f642c6	chore(gui, man, authors): update docs, translations, and contributors	2026-06-01 05:22:49 +00:00
ShabloneandElias	d91f8849a2	chore(syncthing): open URLs via Windows API instead via cmd.exe (#10712 ) ### Purpose On Windows replace `cmd.exe /C start` with direct `ShellExecute` API for opening the webpage. The previous implementation used `exec.Command("cmd.exe", "/C", "start "+url)` which spawns two extra processes (cmd.exe → start). Launching cmd.exe resulted in a shortly visible terminal. Both -`start` -and another alternative `exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()` are just wrappers for `ShellExecute`. So this implementation is even more direct ### Testing I executed the compiled syncthing.exe on Windows 11, both from explorer and console. The webpage opened as expected. ### Screenshots N/A. ### Documentation N/A ## Authorship Name: Elias @Shablone Email: [1elias.bauer@gmail.com](mailto:1elias.bauer@gmail.com) Signed-off-by: Elias <1elias.bauer@gmail.com> Co-authored-by: Elias <1elias.bauer@gmail.com>	2026-05-25 21:37:10 +00:00
Jakob Borg	6be1ff8480	fix(protocol): handle zero-size requests (fixes #10709 ) (#10710 ) - Allow zero-sized requests since they are sent by all current versions of Syncthing. - Stop sending zero-sized requests since that's stupid. --------- Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-25 15:22:07 +02:00
Syncthing Release Automation	3ec73403c1	chore(gui, man, authors): update docs, translations, and contributors	2026-05-25 05:12:14 +00:00
mattn	8ca3cca0a0	chore: use path/filepath for local file system paths (#10705 ) Build Syncthing / Gather common facts (push) Successful in 32s Details Build Syncthing / Build and test (~1.25.0, macos-latest) (push) Has been cancelled Details Build Syncthing / Build and test (~1.25.0, windows-latest) (push) Has been cancelled Details Build Syncthing / Build and test (~1.26.0, macos-latest) (push) Has been cancelled Details Build Syncthing / Build and test (~1.26.0, ubuntu-latest) (push) Has been cancelled Details Build Syncthing / Build and test (~1.26.0, windows-latest) (push) Has been cancelled Details Build Syncthing / Basic checks passed (push) Has been cancelled Details Build Syncthing / Package for Windows (push) Has been cancelled Details Build Syncthing / Build and test (~1.25.0, ubuntu-latest) (push) Has been cancelled Details Build Syncthing / Codesign for Windows (push) Has been cancelled Details Build Syncthing / Package for Linux (common) (push) Has been cancelled Details Mirrors / Mirror to Codeberg (push) Has been cancelled Details Build Syncthing / Package for Linux (other) (push) Has been cancelled Details Build Syncthing / Package for Linux (mips) (push) Has been cancelled Details Build Syncthing / Package for illumos (push) Has been cancelled Details Build Syncthing / Package for macOS (push) Has been cancelled Details Build Syncthing / Notarize for macOS (push) Has been cancelled Details Build Syncthing / Package cross compiled (push) Has been cancelled Details Build Syncthing / Package source code (push) Has been cancelled Details Build Syncthing / Sign for upgrade (push) Has been cancelled Details Build Syncthing / Package for Debian (push) Has been cancelled Details Build Syncthing / Publish nightly build (push) Has been cancelled Details Build Syncthing / Publish release files (push) Has been cancelled Details Build Syncthing / Publish APT (push) Has been cancelled Details Build Syncthing / Build and push Docker images (GHCR) (Dockerfile, syncthing, syncthing) (push) Has been cancelled Details Build Syncthing / Build and push Docker images (GHCR) (Dockerfile.stdiscosrv, discosrv, stdiscosrv) (push) Has been cancelled Details Build Syncthing / Build and push Docker images (GHCR) (Dockerfile.strelaysrv, relaysrv, strelaysrv) (push) Has been cancelled Details Build Syncthing / Sync images to Docker hub (push) Has been cancelled Details Build Syncthing / Run govulncheck (push) Has been cancelled Details Build Syncthing / Run golangci-lint (push) Has been cancelled Details Build Syncthing / Run meta checks (push) Has been cancelled Details ### Purpose `path` is for slash-separated paths (URLs, BEP protocol); local file system paths should use `path/filepath`. Fixed in `cmd/stdiscosrv/database.go` (3 sites) and `internal/db/sqlite/db_test.go` (1 site). ### Testing `go build ./cmd/stdiscosrv/...` and `go vet` pass. Signed-off-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>	2026-05-23 22:31:33 +02:00
mattn	0c489f4ae2	fix(stcrashreceiver): close source loader responses on errors (#10704 ) Fix a response body leak in `githubSourceCodeLoader.Load` where the body was not closed when the HTTP status was non-200. Signed-off-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>	2026-05-23 13:50:03 +00:00
Jakob Borg	deb1e5b38a	Revert "build: temporarily disable illumos for release" This reverts commit `c0c401efeb`.	2026-05-23 12:00:07 +02:00
Jakob Borg	49a2688caa	Merge branch 'infrastructure' * infrastructure: build: let infra containers builds fail individually chore(ur): move structs to reduce dependency chain chore(stcrashreceiver): add profiler on metrics port chore(stcrashreceiver): compact diskstore in-memory representation chore(stcrashreceiver): better source cache & metrics chore(stcrashreceiver): metrics on ignore matches	2026-05-23 09:36:25 +02:00
Jakob Borg	05b4f6abda	build: let infra containers builds fail individually Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 09:18:15 +02:00
Jakob Borg	9152d7fb2f	chore(ur): move structs to reduce dependency chain lib/ur brings in a lot of dependencies we don't need in e.g. stcrashreceiver, who only needs the small failure reporting structs. Make those part of the lean `contract` package instead. Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 09:13:47 +02:00
Jakob Borg	4404b4dfb4	chore(stcrashreceiver): add profiler on metrics port Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 08:51:34 +02:00
Jakob Borg	b537090d91	chore(stcrashreceiver): compact diskstore in-memory representation Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 08:51:34 +02:00
Jakob Borg	79423edbdf	chore(stcrashreceiver): better source cache & metrics Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 08:51:34 +02:00
Jakob Borg	33075974cb	chore(stcrashreceiver): metrics on ignore matches Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 08:51:32 +02:00
Jakob Borg	8a3a06f7ca	build(deps): x/net for govulncheck (#10703 ) Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 06:48:21 +00:00
Jakob Borg	d0b35021c6	chore(syncthing): include runtime context in GC crashes (#10702 ) The runtime prints a lot of context for crashes due to bad pointers etc, which is required to understand the crash, but this context comes before the `fatal error: ...` line. Currently those lines get filtered out and not included in the crash report. This change modifies the criteria so that we start collecting crash data also at a line that begins with `runtime:`, and tweaks the parsing later to look for the specific `panic:` or `fatal error:` which may come later as the subject. --------- Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 08:40:43 +02:00
Jakob Borg	6322091462	fix(discover): only announce wildcard for TCP punching when listening on wildcard address (fixes #10503 ) (#10691 ) If we aren't announcing e.g. tcp://0.0.0.0:22000 then also do not announce tcp://0.0.0.0:0. Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 06:37:48 +00:00
Jakob Borg	5464970c5d	fix(versioner): ensure user read/write/execute on archived dirs (fixes #10532 ) (#10696 ) This makes sure the user running Syncthing, and hence Synchting itself, has read/write/execute on directories in .stversions. The other permission bits remain copied from the source directory, ensuring whatever group and other permissions were set remain in effect. Closes #10695. --------- Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-23 06:21:04 +00:00
Jakob Borg	3962a23723	fix(syncthing): properly upgrade via REST when Syncthing is running (fixes #10697 ) (#10699 ) The locking logic for upgrades got inverted in the lockfile changes. If we got the lock it means Syncthing wasn't already running, so we can do a direct upgrade. If we failed to get the lock it means Syncthing was running and we should tell the REST interface to do the upgrade. Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-21 10:15:18 +02:00
Jakob Borg	feaa90408e	Merge branch 'infrastructure' * infrastructure: fix(stcrashreceiver): allow extra pre/post data in version line chore(stcrashreceiver): improve logging chore(stdiscosrv): prewarm counters at startup	2026-05-21 09:57:46 +02:00
Jakob Borg	a8ed6e4855	fix(stcrashreceiver): allow extra pre/post data in version line Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-19 08:46:22 +02:00
Jakob Borg	5b1e1c0520	chore(stcrashreceiver): improve logging Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-19 08:46:21 +02:00
Jakob Borg	c17be06192	chore(stdiscosrv): prewarm counters at startup Signed-off-by: Jakob Borg <jakob@kastelo.net>	2026-05-18 23:40:38 +02:00